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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 326. Отображено 100.
19-04-2012 дата публикации

METHOD AND APPARATUS FOR EXCHANGING CONTROL OF A TRANSMISSION OPPORTUNITY

Номер: US20120093134A1
Автор: GRANDHI Sudheer A., Levy Joseph S., Rudolf Marian, ZUNIGA Juan Carlos
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

Methods and apparatus are disclosed. A method implemented in a wireless transmit/receive unit (WTRU) includes receiving a packet from a first other WTRU during a transmission opportunity (TxOP) associated with the first other WTRU and forwarding the packet to a second other WTRU during a remaining portion of the TxOP. 1. A method implemented in a wireless transmit/receive unit (WTRU) , the method comprising:receiving a packet from a first other WTRU during a transmission opportunity (TxOP) associated with the first other WTRU; andforwarding the packet to a second other WTRU during a remaining portion of the TxOP.2. The method of claim 1 , wherein: the TxOP is an interval of time reserved for the first other WTRU to exchange sequences onto a wireless medium claim 1 , the WTRU receives the packet from the first other WTRU at a time during the TxOP claim 1 , and the remaining portion of the TxOP is a portion of the TxOP that is after the time that the WTRU receives the packet from the first other WTRU.3. The method of claim 1 , wherein the packet includes an indication that control of the remaining portion of the TxOP has been passed on to the WTRU.4. A wireless transmit/receive unit (WTRU) comprising:a receiving unit configured to receive a packet from a first other WTRU during a transmission opportunity (TxOP) associated with the first other WTRU; anda transmitting unit configured to forward the packet to a second other WTRU during a remaining portion of the TxOP.5. The WTRU of claim 4 , wherein: the TxOP is an interval of time reserved for the first other WTRU to exchange sequences onto a wireless medium claim 4 , the receiving unit is configured to receive the packet from the first other WTRU at a time during the TxOP claim 4 , and the remaining portion of the TxOP is a portion of the TxOP that is after the time that the receiving unit receives the packet from the first other WTRU.6. The WTRU of claim 4 , wherein the packet includes an indication that control of ...

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Номер записи: 1
02-08-2012 дата публикации

PEER-TO-PEER WIRELESS COMMUNICATION SYSTEM

Номер: US20120195263A1
Автор: Chandra Arty, GRANDHI Sudheer A., Levy Joseph S., Zeira Eldad
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used for peer-to-peer communications. A first non-access point (non-AP) station (STA) may receive a message for establishing a direct communication link from a second non-AP STA. The message may include a service priority. The first non-AP STA may transmit another message in response to receiving the message from the second non-AP STA, and communicate directly with the second non-AP STA. The system may be an Ad hoc network comprising a plurality of STAs without an access point (AP) where each STA maintains a database of one-hop and two-hop STAs, and establishes a direct link to other STAs after informing neighboring STAs of an intention to establish a direct communication link. 1. A method of establishing a direct communication session , the method comprising:receiving, by a first non-access point (non-AP) station (STA), an initiation message from a second non-AP STA for establishing a direct communication link with the second non-AP STA, wherein the initiation message includes application information that includes a service priority, wherein the service priority indicates an application that may interrupt an ongoing application;transmitting a response message; andcommunicating directly with the second non-AP STA.2. The method of claim 1 , wherein the initiation message includes capability information of the second non-AP STA.3. The method of claim 1 , wherein the initiation message includes discovery information.4. The method of claim 1 , wherein the response message includes capability information of the first non-AP STA.5. The method of claim 1 , wherein the response message includes application information.6. The method of claim 5 , wherein the application information in the response message includes a service priority claim 5 , wherein the service priority indicates an application that may interrupt an ongoing application.7. The method of claim 1 , wherein the response message includes discovery information.8. The method of claim 1 ...

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Номер записи: 2
09-08-2012 дата публикации

METHOD AND APPARATUS FOR SENDING AND RECEIVING CHANNEL QUALITY INDICATORS (CQIs)

Номер: US20120201166A1
Автор: Christopher R. Cave, Paul Marinier, Rocco DiGirolamo, Sudheer A. Grandhi, Vincent Roy
Принадлежит: InterDigital Technology Corp

A method and apparatus for sending and receiving channel quality indicators (CQIs) is disclosed. A CQI may be sent or received periodically. A CQI may also be sent or received upon request by a network.

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Номер записи: 3
13-09-2012 дата публикации

METHOD AND APPARATUS FOR HANDLING BURSTY NETWORK ENTRY AND RE-ENTRY IN MACHINE TO MACHINE NETWORKS

Номер: US20120230178A1
Автор: GRANDHI Sudheer A., Murias Ronald G., Pinheiro Ana Lucia, Seed Dale N., Wang Lei
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus may be used for handling bursty network entry and re-entry in M2M networks. For example, a base station (BS) may receive a trigger from at least one device associated with the BS. The at least one device may be a wireless transmit/receive unit (WTRU), or it may be a network device. The BS may determine whether a widespread exception is imminent based on the trigger. If a widespread exception is imminent, the BS may transmit an indication to the at least one device. The indication may indicate to the at least one device that the BS has received a widespread exception report. The WTRU may receive the indication, and terminate a network entry procedure in response to the indication. The WTRU may enter a power saving mode in response to the indication. 1. A method for use in a base station (BS) , the method comprising:receiving an event indication message from one device of a plurality of devices in communication with the BS;determining, based on the event indication message, whether a widespread exception event is imminent, wherein a widespread exception event is an event that will result in the plurality of devices in communication with the BS losing communication with the BS; andon a condition that a widespread exception event is imminent, transmitting a first system indication message to at least the one device, wherein the system indication message indicates that the plurality of devices in communication with the BS should cease transmitting event indication messages to the BS.2. The method of further comprising:determining whether the BS has recovered from the widespread exception event; andon a condition that the BS has not recovered from the widespread exception event, transmitting a second system indication message to at least one of the plurality of devices.3. The method of claim 1 , wherein the system indication message is transmitted periodically.4. The method of claim 1 , wherein the event indication message is an exception report.5. ...

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Номер записи: 4
27-12-2012 дата публикации

Non-legacy preamble for wireless local area networks

Номер: US20120327871A1
Автор: Guodong Zhang, Hanqing Lou, Monisha Ghosh, Nirav B. Shah, Robert L. Olesen, Ronald G. Murias, Sudheer A. Grandhi, Xiaofei Wang
Принадлежит: InterDigital Patent Holdings Inc

Method and apparatus for transmission and reception of a Greenfield preamble are provided. In the method and apparatus, the Greenfield preamble may be a single user (SU) preamble or a multi user (MU) preamble. As an MU preamble, the Greenfield preamble includes a short training field (STF), a first long training field (LTF), a first signal (SIG) field, at least one additional LTF, and a second SIG field. Additionally, the Greenfield preamble may be utilized for efficient transmission and reception of control information to wireless devices, whereby the control information may be indicated using the STF, the first LTF, or the first or second SIG fields.

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Номер записи: 5
28-03-2013 дата публикации

METHODS AND SYSTEMS FOR PROVIDING EFFICIENT OPERATION OF MULTIPLE MODES IN A WLAN SYSTEM

Номер: US20130077613A1
Автор: GRANDHI Sudheer A., Levy Joseph S., Sammour Mohammed
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus that applies medium access control (MAC) transmission opportunity (TXOP) protection for multiple mode operation in a WLAN system. In particular, MAC mechanisms are defined to support multiple mode CTS frames, and multiple mode CF-End frames sent by the AP, each in a format appropriate for the corresponding mode which may also apply to a single mode. MAC mechanisms permit truncation of TXOP duration for releasing the unused portion of the TXOP when no further data for transmission is available. Release of unused protected TXOP is possible for both protected AP transmissions and STA transmissions. 1. A method for use in an access point (AP) , the method comprising:receiving a request-to-send (RTS) frame from a station (STA), wherein the RTS frame indicates a request for a transmit opportunity (TXOP);transmitting, in response to the RTS frame, an indication of a TXOP, wherein the indication of a TXOP is a clear-to-send (CTS) frame;receiving packet data from the STA during the TXOP;receiving, on a condition that the STA does not have further packet data to transmit, an indication of truncation of the TXOP including a first space-time block code (STBC) contention free (CF)-End frame or a first non-STBC CF-End frame; andtransmitting a second STBC CF-End frame and a second non-STBC CF-End frame.2. The method of claim 1 , wherein the receiving the indication of truncation of the TXOP occurs on a condition that sufficient TXOP duration is remaining.3. The method of claim 2 , wherein the remaining TXOP duration is sufficient on a condition that the remaining TXOP duration is greater than a sum of a CF-End frame duration claim 2 , an STBC CF-End frame duration claim 2 , a non-STBC CF-End frame duration claim 2 , and two short interframe spacing (SIFS) durations.4. The method of claim 1 , wherein the indication of truncation of the TXOP indicates a network allocation vector (NAV) reset to the AP.5. The method of claim 1 , wherein each of the second STBC ...

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Номер записи: 6
27-06-2013 дата публикации

METHOD AND APPARATUS OF ENABLING MULTI BAND TRANSMISSION

Номер: US20130163578A1
Автор: GRANDHI Sudheer A., LIVET Catherine M., Sammour Mohammed, ZUNIGA Juan Carlos
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus for enabling multi-band transmission includes receiving a beacon on a first radio band and receiving the beacon on a second radio band. The beacon includes synchronization information for transmission on the first and second radio bands. 1. A method implemented in a first wireless transmit/receive unit (WTRU) for multi-band communication with a second WTRU , the method comprising:receiving data by a first receiver on a first radio band;receiving data by a second receiver on a second radio band;receiving from the second WTRU a beacon frame including synchronization information for a beacon period (BP), wherein the first receiver receives the beacon frame on the first radio band and the second receiver receives the beacon frame on the second radio band; andsetting a BP start time in a beacon frame of the first and second radio bands in the first WTRU based on the received synchronization information.2. The method of claim 1 , wherein the synchronization information is received in a BP switch information element (IE).3. The method of claim 1 , wherein the received beacon frame includes an expanded bandwidth transmission (EBT) BP switch IE claim 1 , wherein the EBT BP switch IE includes a field indicating a new beacon timing value and a time to change to a new BP.4. The method of claim 1 , wherein the beacon frame is received simultaneously on the first and second radio bands.5. The method of claim 1 , wherein the beacon frame is received sequentially on the first and second radio bands.6. The method of claim 1 , wherein the beacon frame includes EBT capabilities of the second WTRU.7. The method of claim 6 , wherein the EBT capabilities include any one of the following: a default channel and a default expanded channel.8. A wireless transmit/receive unit (WTRU) in communication with a transmitting WTRU claim 6 , the WTRU comprising:a first receiver for receiving data including a beacon frame on a first radio band;a second receiver for receiving ...

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Номер записи: 7
27-06-2013 дата публикации

METHOD AND APPARATUS FOR MEASURING INTERFERENCE IN WIRELESS STATIONS

Номер: US20130165054A1
Автор: GRANDHI Sudheer A., Kwak Joseph A., Levy Joseph S., ZUNIGA Juan Carlos
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method for use in a station of measuring radio frequency (RF) interference is presented. An average noise power indicator of the STA (STA_ANPI) is determined. A rate of change of the STA_ANPI is monitored to determine an RF interference metric. The RF interference metric is transmitted to another network entity, whereby the another network entity is enabled to perform load balancing based on the RF interference metric. 1. A method for use in a station (STA) of measuring radio frequency (RF) interference , the method comprising:determining an average noise power indicator of the STA (STA_ANPI);monitoring a rate of change of the STA_ANPI to determine an RF interference metric; andtransmitting the RF interference metric to another network entity, whereby the another network entity is enabled to perform load balancing based on the RF interference metric.2. The method according to claim 1 , wherein the monitoring includes:storing STA_ANPI values; anddetermining the RF interference metric based on a difference between a stored STA_ANPI value and a most recent STA_ANPI value.3. The method according to claim 2 , wherein the difference is determined during a selected time window.4. The method according to claim 2 , wherein RF interference onset is determined on a condition that the difference is greater than a threshold value.5. The method according to claim 2 , wherein RF interference termination is determined on a condition that the difference is less than a threshold value. This application is a divisional of U.S. patent application Ser. No. 11/972,871, filed Jan. 11, 2008, which claims the benefit of U.S. Provisional Patent Application No. 60/884,775, filed on Jan. 12, 2007, which are incorporated by reference as if fully set forth herein.The carrier sense multiple access with collision avoidance (CSMA/CA) protocol for IEEE 802.xx communications requires each wireless station (STA) to determine that a channel is idle prior to transmitting. The physical (PHY) and medium ...

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Номер записи: 8
11-07-2013 дата публикации

METHOD AND APPARATUS FOR ACCELERATED LINK SETUP

Номер: US20130176897A1
Автор: GRANDHI Sudheer A., Targali Yousif, Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A methods and apparatus may be used for accelerated link setup. A method may include a station (STA) acquiring information about an access point of an Institute of Electrical and Electronics Engineers (IEEE) 802.11 network in advance through a previously connected IEEE 802.11 interface and/or an interface other than the IEEE 802.11 network. The STA may use the acquired information during a link setup procedure between the STA and the access point. The information may include a suggestion for a specific procedure to complete the link setup procedure between the STA and the access point. 1. A station (STA) comprising:a receiver configured to receive a message that indicates an Extensible Authentication Protocol (EAP) procedure is successful;a processor configured to generate a pairwise master key (PMK); anda transmitter configured to transmit a dynamic host configuration protocol (DHCP) request to an access point (AP) to establish an internet protocol (IP) address assignment over a wireless local area network (WLAN); andwherein the receiver and the transmitter are further configured to communicate with an authentication, authorization, and accounting (AAA) server over the WLAN using the PMK.2. The STA of claim 1 , wherein the processor is configured to generate the PMK using a station Identity Provider (STA-OP) pre-shared key (PSK).3. The STA of claim 1 , wherein the transmitter and receiver are further configured to perform a 4-way handshake protocol.4. The STA of claim 3 , wherein the 4-way handshake protocol uses a pseudo-random function to derive a pseudo-random value.5. The STA of claim 4 , wherein the pseudo-random value is a nonce.6. The STA of claim 5 , wherein the nonce is associated with a pre-shared key (PSK).7. The STA of claim 4 , wherein the receiver is further configured to receive a first extensible authentication protocol (EAP) over local area network (LAN) (EAPOL)-Key frame claim 4 , and the transmitter is further configured to transmit a second ...

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Номер записи: 9
01-08-2013 дата публикации

SENDING AND REDUCING UPLINK FEEDBACK SIGNALING FOR WIRELESS TRANSMISSION OF DATA

Номер: US20130195055A1
Автор: Cave Christopher, Chandra Arty, GRANDHI Sudheer A., Lu Guang, Marinier Paul, Zhang Guodong
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A wireless transmit/receive unit includes at least one processor that receives a high speed physical downlink shared channel, and in response, transmits at least one random access channel preamble followed by ACK/NACK and channel quality indicator (CQI) information. The at least one random access channel preamble is selected from a set of random access preambles reserved for the ACK/NACK and CQI information. 1. A wireless transmit/receive unit (WTRU) comprising:at least one processor configured to receive a high speed physical downlink shared channel; andwherein the at least one processor is configured in response to the received high speed physical downlink shared channel to transmit at least one random access channel preamble followed by ACK/NACK and channel quality indicator (CQI) information;wherein the at least one random access channel preamble is selected from a set of random access preambles reserved for the ACK/NACK and CQI information.2. The WTRU of claim 1 , wherein random access channel preambles other than the reserved random access channel preambles are used to transmit random access data without ACK/NACK and CQI information.3. A method implemented in a wireless transmit/receive unit (WTRU) claim 1 , the method comprising:receiving a high speed physical downlink shared channel; andtransmitting at least one random access channel preamble followed by ACK/NACK and channel quality indicator (CQI) information, in response to receiving the high speed physical downlink shared channel;wherein the at least one random access channel preamble is selected from a set of random access preambles reserved for the ACK/NACK and CQI information.4. The method of claim 3 , wherein random access channel preambles other than the reserved random access channel preambles are used to transmit random access data without ACK/NACK and CQI information.5. A Node B comprising:at least one processor configured to transmit a high speed physical downlink shared channel to a wireless ...

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Номер записи: 10
05-09-2013 дата публикации

Method and system for beacon information provisioning, transmissions and protocol enhancements

Номер: US20130230035A1
Автор: Guodong Zhang, Hanqing Lou, Lei Wang, Monisha Ghosh, Sudheer A. Grandhi, Xiaofei Wang
Принадлежит: InterDigital Patent Holdings Inc

A method for beacon information provisioning, transmissions and protocol enhancements includes defining multiple level beacons based on the attributes of beacon information fields/elements. A short beacon may be used in addition to a primary beacon in space-time block code (STBC) modes, non-STBC modes and in multiple bandwidth modes. The short beacons may also be used for Fast Initial Link Setup (FILS) and to extend system coverage range. Beacon transmissions may use adaptive modulation and coding set/scheme (MCS).

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Номер записи: 11
12-09-2013 дата публикации

SUPPORTING A LARGE NUMBER OF DEVICES IN WIRELESS COMMUNICATIONS

Номер: US20130235720A1
Автор: GRANDHI Sudheer A., Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method for receiving a backoff value at a wireless station is presented. A traffic indication map is received at the station, wherein a backoff number is implicitly assigned to the station based on a position of the station within the traffic indication map. The backoff value is determined by multiplying the backoff number by a predetermined time value. 1. A method for determining a backoff value at a wireless station , comprising:receiving a traffic indication map at the station, wherein a backoff number is implicitly assigned to the station based on a position of the station within the traffic indication map; anddetermining the backoff value by multiplying the backoff number by a predetermined time value.2. The method according to claim 1 , wherein the predetermined time value is a fixed value.3. The method according to claim 1 , wherein the predetermined time value is received at the station via any one of: a beacon claim 1 , a probe response frame claim 1 , an association response frame claim 1 , a management frame claim 1 , or a control frame.4. The method according to claim 1 , further comprising:setting a backoff timer at the station with the determined backoff value; andattempting to send a communication by the station after the backoff timer has expired.5. A wireless station claim 1 , comprising:a transceiver configured to receive a traffic indication map, wherein a backoff number is implicitly assigned to the station based on a position of the station within the traffic indication map; anda processor in communication with the transceiver, the processor configured to determine a backoff value for the station by multiplying the backoff number by a predetermined time value.6. The wireless station according to claim 5 , wherein the predetermined time value is a fixed value.7. The wireless station according to claim 5 , wherein the transceiver is configured to receive the predetermined time value via any one of: a beacon claim 5 , a short beacon claim 5 , a ...

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Номер записи: 12
12-09-2013 дата публикации

METHOD AND APPARATUS FOR POWER SAVINGS IN A WIRELESS LOCAL AREA NETWORK

Номер: US20130235773A1
Автор: Ghosh Monisha, GRANDHI Sudheer A., Shah Nirav B., Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus for power savings in a wireless local area network (WLAN) are disclosed. A station (STA) may receive parameters that associate the STA to a specific group of STAs and perform a channel access during a period that is allowed for the group of STAs based on the parameters. The STA may receive information regarding an access slot that is allowed for the group of STAs and access a channel during the access slot. The STA may receive a schedule for wake up from a doze state and goes in and out of the doze state based on the schedule. A highest channel access priority may be provided to a sensor or meter type of STA. The STA may indicate to an access point (AP) that the STA will not listen to a traffic indication map (TIM) or a delivery TIM (DTIM) in a beacon.

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Номер записи: 13
19-09-2013 дата публикации

METHOD AND APPARATUS FOR VERSATILE MAC MULTIPLEXING IN EVOLVED HSPA

Номер: US20130242871A1
Автор: GRANDHI Sudheer A., Marinier Paul, Pani Diana, Terry Stephen E.
Принадлежит:

Methods and apparatus for versatile medium access control (MAC) multiplexing in evolved HSPA are disclosed. More particularly, methods for downlink optimization of the enhanced high speed MAC (MAC-ehs) entity and uplink optimization of the MAC-i/is entity are disclosed. Apparatuses for using the optimized downlink and uplink MAC entities are also disclosed. 1. A method for creating a medium access control (MAC) enhanced high speed (MAC-ehs) header for a MAC protocol data unit (PDU) , the method comprising: whether a first reordering SDU in the reordering PDU is a last segment of a MAC-ehs SDU, or', 'whether a last reordering SDU in the reordering PDU is a first segment of a MAC-ehs SDU., 'creating the MAC-ehs header for the MAC PDU, the MAC-ehs header comprising a segmentation indication (SI) field for a reordering PDU, the SI field indicating2. The method of claim 1 , wherein the SI field indicates that the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU claim 1 , and claim 1 , if there are more than one reordering SDUs in the reordering PDU claim 1 , the last reordering SDU of the reordering PDU is a complete MAC-ehs SDU.3. The method of claim 1 , wherein the SI field indicates that the last reordering SDU is the first segment of the MAC-ehs SDU claim 1 , and claim 1 , if there are more than one reordering SDUs in the reordering PDU claim 1 , the first reordering SDU of the reordering PDU is a complete MAC-ehs SDU.4. The method of claim 1 , wherein the SI field indicates that there is one reordering SDU in the reordering PDU that is a middle segment of a MAC-ehs SDU.5. The method of claim 1 , wherein the SI field indicates that claim 1 , if there are more than one reordering SDUs in the reordering PDU claim 1 , the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU and the last reordering SDU of the reordering PDU is the first segment of the MAC-ehs SDU.6. The method of claim 1 , wherein the ...

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Номер записи: 14
24-10-2013 дата публикации

Method and apparatus for enhancing rlc for flexible rlc pdu size

Номер: US20130279490A1
Автор: Diana Pani, James M. Miller, Paul Marinier, Stephen E. Terry, Sudheer A. Grandhi
Принадлежит: InterDigital Technology Corp

Enhancements are provided for the radio link control (RLC) protocol in wireless communication systems where variable RLC packet data unit (PDU) size is allowed. When flexible RLC PDU sizes are configured by upper layers, radio network controller (RNC)/Node B flow control, RLC flow control, status reporting and polling mechanisms are configured to use byte count based metrics in order to prevent possible buffer underflows in the Node B and buffer overflows in the RNC. The enhancements proposed herein for the RLC apply to both uplink and downlink communications.

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Номер записи: 15
14-11-2013 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING ACKNOWLEDGEMENTS IN RESPONSE TO RECEIVED FRAMES

Номер: US20130301569A1
Автор: Ghosh Monisha, GRANDHI Sudheer A., Lou Hanqing, Wang Xiaofei
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus for transmitting acknowledgements in response to data packets in wireless communication are disclosed. A recipient may receive a plurality of data packets from a plurality of stations and transmit acknowledgements for the data packets to the originating stations in a single transmission. The acknowledgements may be transmitted using multi-user multiple-input multiple-output (MU-MIMO). Alternatively, the acknowledgements may be aggregated and transmitted in the single transmission. A short acknowledgement (ACK) frame may be sent in response to a received frame. The short ACK frame may include an ACK sequence corresponding to a sequence identity (ID) included in the received frame. The short ACK frame may include a short training field (STF) and the ACK sequence. The short ACK frame may be transmitted with a short ACK indication. The short ACK frame may be sent in response to an indication included in the received frame. 1. A method for use in a station of transmitting acknowledgements in response to data packets in wireless communication , the method comprising:receiving data packets from a plurality of stations;generating acknowledgements for the data packets;obtaining a transmission opportunity; andtransmitting the acknowledgements for the data packets to the plurality of stations in a single transmission.2. The method of wherein the acknowledgements are transmitted using multi-user multiple-input multiple-output (MU-MIMO).3. The method of wherein the acknowledgements are transmitted after a predetermined time from receiving the data packets.4. The method of wherein the acknowledgements are transmitted based on an agreed schedule or a solicitation by one of the plurality of stations claim 3 , or on a condition that a predetermined number of data packets are received.5. The method of wherein generating acknowledgements for the data packets includes generating acknowledgement packets claim 1 , and aggregating the acknowledgement packets claim 1 ...

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Номер записи: 16
23-01-2014 дата публикации

HIGH-THROUGHPUT CHANNEL OPERATION IN A MESH WIRELESS LOCAL AREA NETWORK

Номер: US20140022947A1
Автор: GRANDHI Sudheer A., Levy Joseph S., Rudolf Marian, ZUNIGA Juan Carlos
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

High throughput channel operation in a mesh wireless local area network (WLAN) is disclosed. A mesh network comprises a plurality of mesh points and a network management entity (NME). The NME is configured to retrieve capability and configuration data from the mesh points. The NME configures at least one mesh point with respect to IEEE 802.11n channelization and legacy protection mode based on the capability and configuration data. 1. An access point (AP) comprising:a wireless receiver configured to receive, from each of a plurality of wireless transmit receive units (WTRUs), information about at least one configuration of each of the plurality of WTRUs regarding coexistence of a 20 MHz channel and a 40 MHz channel; anda wireless transmitter configured to transmit, to at least one of the plurality of WTRUs, instructions for controlling operation of the at least one of the plurality of WTRUs regarding IEEE 802.11n channelization and legacy protection, wherein a content of the instructions for controlling the operation of the at least one of the plurality of WTRUs regarding IEEE 802.11n channelization and legacy protection is based at least on the information about the at least one configuration of at least one of the WTRUs regarding the coexistence of the 20 MHz channel and the 40 MHz channel.2. The AP of claim 1 , wherein the information about the at least one configuration of at least one of the plurality of WTRUs further includes information regarding at least one of physical layer spoofing claim 1 , reduced inter-frame spacing (RIFS) protection claim 1 , green field protection claim 1 , space time block coding (STBC) control frame claim 1 , legacy signal field (L-SIG) transmission opportunity (TXOP) protection claim 1 , and phased coexistence operation (PCO).3. The AP of claim 1 , wherein the wireless receiver is further configured to wirelessly receive the information about the at least one configuration of at least of the plurality of WTRUs during or after an ...

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Номер записи: 17
13-02-2014 дата публикации

PEER-TO-PEER WIRELESS COMMUNICATION SYSTEM

Номер: US20140044115A1
Автор: Chandra Arty, GRANDHI Sudheer A., Levy Joseph S., Zeira Eldad M.
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used for peer-to-peer communications. A first non-AP STA may transmit a request to another non-AP STA. The request may include information regarding an application. The first non-AP STA may receive a response from the other non-AP STA. The response may include information regarding the application. 1. A non-access point (non-AP) station (STA) comprising:a transmitter and a receiver configured to communicate directly with a second non-AP STA;wherein the transmitter is further configured to transmit a request to a remote non-AP STA for information regarding an application; andwherein the receiver is further configured to receive a response message from the remote non-AP STA, wherein the response message includes information regarding the application.2. The non-AP STA of claim 1 , wherein the information includes an application priority of the application indicating a relative priority of the application with respect to other applications.3. The non-AP STA of claim 1 , wherein the information regarding the application priority indicates that the application may interrupt an ongoing application.4. The non-AP STA of claim 1 , wherein the request includes capability information of the non-AP STA or discovery information.5. The non-AP STA of claim 1 , wherein the response message includes capability information of the second non-AP STA or discovery information.6. The non-AP STA of claim 1 , wherein the transmitter is further configured to transmit a request that includes a bandwidth requirement of the non-AP STA and the receiver is further configured to receive a response message that includes a bandwidth requirement of the second non-AP STA.7. The non-AP STA of claim 1 , wherein the transmitter is further configured to transmit a request that includes an identification of the non-AP STA and the receiver is further configured to receive a response message that includes an identification of the second non-AP STA.8. The non-AP STA of claim 1 , ...

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Номер записи: 18
24-04-2014 дата публикации

METHOD AND APPARATUS FOR TRANSMISSION MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM

Номер: US20140112230A1
Автор: GRANDHI Sudheer A., Olesen Robert L., Sammour Mohammed
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used in wireless communications. The apparatus may be an access point (AP), and may transmit a power save frame. The power save frame may include one or more Uplink (UL) Transmission Times (ULT)s. The apparatus may determine that a station (STA) did not transmit during its respective ULT. The AP may transmit another power save frame. The other power save frame may include a modified ULT. The modified ULT may be for a STA that did not transmit during its respective ULT. The other power save frame may include an unmodified ULT. The unmodified ULT may be for a STA that did not transmit. 1. A method for use in an access point (AP) , the method comprising:transmitting, to a plurality of stations (STA)s, a first power save frame that includes a plurality of scheduled Uplink (UL) Transmission Times (ULT)s;determining that one of the plurality of STAs did not transmit during its respective ULT; andtransmitting a second power save frame to the plurality of STAs, wherein the second power save frame includes a modified ULT for the STA that did not transmit during its respective ULT and an unmodified ULT for a STA with a ULT scheduled after the STA that did not transmit.2. The method of claim 1 , further comprising:waiting a predetermined period before transmitting the second power save frame.3. The method of claim 2 , wherein the predetermined period is a point control function inter-frame spacing (PIFS) period.4. The method of claim 1 , wherein the second power save frame includes rescheduled ULTs.5. The method of claim 4 , further comprising:transmitting an additional frame to at least one STA indicating that the at least one STA should ignore a previously transmitted power save frame.6. The method of claim 5 , wherein the additional frame is transmitted to all of the plurality of STAs.7. The method of claim 5 , wherein the additional frame is transmitted to a portion of the plurality of STAs.8. The method of claim 5 , wherein the additional ...

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Номер записи: 19
24-01-2019 дата публикации

GROUP TRANSMISSIONS IN WIRELESS LOCAL AREA NETWORKS

Номер: US20190028915A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method for MU MIMO channel sounding by a STA includes receiving, from an AP, sounding information including an indication of a first STA of a group of STAs to transmit feedback and training symbols. The method further includes receiving, from the AP, a frame addressed to the group of STAs, wherein the frame includes a PHY preamble including group identification information identifying the group of STAs. The group identification information enables another STA not in the group of STAs, that receives the frame, to set its network allocation vector (NAV) timer based on a duration field in the frame. On a condition the STA is a first STA in the order of the group of STAs, a first sounding response frame may be transmitted to the AP, wherein the first sounding response frame includes quantized sounding feedback determined from the received training symbols. 1. A method for multi-user (MU) multiple-input multiple output (MIMO) channel sounding by a station (STA) , the method comprising:receiving, from an access point (AP), sounding information and training symbols;wherein the sounding information includes an indication of a first STA in an order of a group of STAs to transmit feedback;receiving, from the AP, a frame addressed to the group of STAs, wherein the frame includes a PHY preamble including a very high throughput signal (VHT-SIG) field, the VHT-SIG field including a group identification (group ID) field; andtransmitting a first sounding response frame to the AP, wherein the first sounding response frame includes quantized sounding feedback determined from the received training symbols;wherein the STA is the first STA in the order of the group of STAs.2. The method of claim 1 , wherein the frame further includes a request for feedback from each STA in the group of STAs.3. The method of claim 1 , wherein the first sounding response frame from the first STA in the group of STAs is transmitted after a short interframe spacing (SIFS) interval delay from the frame.4. ...

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Номер записи: 20
31-01-2019 дата публикации

METHOD AND APPARATUS FOR POWER SAVINGS IN A WIRELESS LOCAL AREA NETWORK

Номер: US20190037489A1
Автор: Ghosh Monisha, GRANDHI Sudheer A., Shah Nirav B., Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus for power savings in a wireless local area network (WLAN) are disclosed. A station (STA) may receive parameters that associate the STA to a specific group of STAs and perform a channel access during a period that is allowed for the group of STAs based on the parameters. The STA may receive information regarding an access slot that is allowed for the group of STAs and access a channel during the access slot. The STA may receive a schedule for wake up from a doze state and goes in and out of the doze state based on the schedule. A highest channel access priority may be provided to a sensor or meter type of STA. The STA may indicate to an access point (AP) that the STA will not listen to a traffic indication map (TIM) or a delivery TIM (DTIM) in a beacon. 1. An access point (AP) associated with a wireless local area network (WLAN) , the AP comprising: receive a first request for a first power save preference from a station (STA), wherein the first power save preference is associated with a first wake-up schedule;', 'determine whether to accept the first power save preference, wherein being configured to determine whether to accept the first power save preference comprises being configured to determine to accept the first power save preference associated with the first wake-up schedule or being configured to determine to reject the first power save preference associated with the first wake-up schedule; and', 'send a first response to the STA indicating that that the first power save preference has been accepted, wherein the first power save preference is associated with an uplink access for a selected group of STAs, wherein the first power save preference is to be sent to the selected group of STAs, and wherein the selected group of STAs includes the STA; and', 'on a condition that it is determined to accept the first power save preference,'}, 'send a second response to the STA indicating that the first power save preference has been rejected.', ' ...

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Номер записи: 21
08-05-2014 дата публикации

OUTER LOOP POWER CONTROL FOR WIRELESS COMMUNICATIONS

Номер: US20140128121A1
Автор: GRANDHI Sudheer A., Koo Chang-Soo, Terry Stephen E.
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A base station configured for outer loop power control receives an uplink dedicated channel transmission from a wireless transmit/receive unit. The base station transmits transmit power control commands in response to the received uplink channel transmission and determines if the wireless transmit/receive unit is in a discontinuous transmission mode. The base station adjusts a target SIR based on which transmission mode for the wireless transmit/receive unit is detected. The value for the transmit power control command is derived from the adjusted target SIR. 1. A system comprising: a first receiver configured to receive an uplink dedicated channel transmission in a first mode and a second mode from a wireless transmit/receive unit (WTRU);', 'a transmitter configured to transmit power commands to the WTRU in response to the received uplink dedicated channel transmission; and', 'a first processor configured to determine whether the WTRU is in the first mode or the second mode and adjust a target signal to interference ratio (SIR) based on the determined first mode or second mode; wherein a value of the transmit power command is derived from the adjusted target SIR; and, 'a base station, comprising 'a second processor configured to determine whether to send the uplink dedicated channel transmission in the first mode or the second mode, wherein in the first mode, the uplink dedicated channel transmission is continuous and in the second mode, the uplink dedicated channel transmission is discontinuous.', 'the WTRU, comprising2. The system of wherein the first processor is further configured to combine a value to the target SIR in response to the determined first or second state. This application is a continuation of U.S. patent application Ser. No. 12/979,983 filed Dec. 28, 2010, which issued on Nov. 5, 2013 as U.S. Pat. No. 8,577,407, which is a continuation of U.S. patent application Ser. No. 12/493,986 filed Jun. 29, 2009, which issued on Dec. 28, 2010 as U.S. Pat. No ...

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Номер записи: 22
22-02-2018 дата публикации

RANGE EXTENSION IN WIRELESS LOCAL AREA NETWORKS

Номер: US20180054250A1
Автор: GRANDHI Sudheer A., Lou Hanqing, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus for use in an IEEE 802.11 root access point (AP) are provided. The method may comprise transmitting, from the root AP to the R-AP, an indication of a number of end-STAs which the R-AP is allowed to associate with. A first message may be received, from the R-AP that enables the root AP to associate the end-STA with the R-AP, the first message including: an indication of a number of information fields in the first message and a number of information fields identified by the indication of the number of information fields. Each information field may include a unique identifier associated with a respective indicated end-STA associated with the R-AP. A second message may be transmitted for the end-STA, from the root AP to the R-AP, and the second message may include the unique identifier. 1. A method for use in an IEEE 802.11 root access point (AP) for receiving an association of an end-station (end-STA) with a relay access point (R-AP) in a relay transmission , the method comprising:transmitting, from the root AP to the R-AP, an indication of a number of end-STAs which the R-AP is allowed to associate with; an indication of a number of information fields in the first message; and', 'a number of information fields identified by the indication of the number of information fields, each information field including a unique identifier associated with a respective indicated end-STA associated with the R-AP; and, 'receiving a first message, from the R-AP by the root AP, that enables the root AP to associate the end-STA with the R-AP, the first message includingtransmitting a second message, from the root AP to the R-AP, wherein the second message is a message for the end-STA and the second message includes the unique identifier.2. The method according to claim 1 , wherein the unique identifier is any one of: a medium access control address of the respective indicated end-STA or an association identifier of the respective indicated end-STA.3. The method ...

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Номер записи: 23
15-05-2014 дата публикации

METHOD AND APPARATUS FOR EFFICIENT ADDRESSING AND POWER SAVINGS IN WIRELESS COMMUNICATIONS

Номер: US20140133380A1
Автор: Chandra Arty, GRANDHI Sudheer A., Sammour Mohammed
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used for assigning groups of stations in wireless communications to one or more groups. Groups may be assigned by an access point (AP) based on information received from a station (STA). Group information may be signaled to each station and a group identifier may be indicated in a frame. The group information may be applied to a performance enhancement, for example power savings for the station, wherein the station enters a power saving mode on a condition that the station determines that it is not a member of the group. 1. An access point (AP) comprising: a processor configured to assign a STA to a group based on the received information;', 'a transmitter configured to transmit, to the STA, an indication of the assigned group; and', 'wherein the transmitter is further configured to transmit a data frame including a data packet and a group identifier associated with the assigned group, to the STA, to enable the STA to determine that the data packet is intended for the group to which the STA is assigned., 'a receiver configured to receive information from at least one station (STA);'}2. The AP of claim 1 , wherein the receiver is configured to receive traffic utilization information of each one of a plurality of STAs and the processor is configured to assign the at least one of the plurality of groups based on the traffic utilization information of each one of a plurality of STAs.3. The AP of claim 1 , wherein the receiver is configured to receive power level information of each one of a plurality of STAs and the processor is configured to assign the at least one of the plurality of groups based on the power level information.4. The AP of claim 1 , wherein the processor is configured to assign the STA to more than one group.5. The AP of claim 1 , wherein the receiver is configured to receive a quality of service requirement of each one of a plurality of STAs and the processor is configured to assign the STA to at least one of the ...

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Номер записи: 24
10-03-2022 дата публикации

LIVE-CUSTOM RECORDING

Номер: US20220078038A1
Автор: Balasubramanian Priyadharshini, Dandapani Rajendran, GRANDHI Sudheer A., Raja Adithya Shivananda, Sudhakara Priyanka
Принадлежит: Zoho Corporation Private Limited

Live-custom recording functionality is described. Live-custom recording can help a teleconferencing participant overcome situations where the participant may, for example, not have been attentive and therefore may have missed what was communicated. Another example of a situation that can be overcome with techniques described in this paper is one in which the participant cannot hear the speaker due to inadequate or low bandwidth and network connectivity issues. An enhanced conference recording functionality such as the live-custom recording functionality proposed and described herein is designed to capture applicable segments or clips of the teleconference meeting. 1. A system comprising one or more processors and memory storing instructions that , when executed by the one or more processors , cause the system to perform:obtaining an indication of a past duration preference;determining a past duration from the indication of a past duration preference;computing, at a live-custom recorder engine, a start time by subtracting the past duration from an end time;initiating a live-custom recording of a teleconference from the start time;stopping the live-custom recording upon receipt of a request to stop recording;providing a link of the live-custom recording to a teleconference participant; andproviding access to the live-custom recording to the teleconference participant.2. The system of claim 1 , comprising instructions that claim 1 , when executed by the one or more processors claim 1 , cause the system to perform:receiving, at the live-custom recorder engine, a notification to start a sliding window history;requesting media packets from a conference management engine; andreceiving media packets from the conference management engine at the live-custom recorder engine.3. The system of claim 1 , wherein the teleconference participant is a first participant claim 1 , comprising instructions that claim 1 , when executed by the one or more processors claim 1 , cause the ...

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Номер записи: 25
05-06-2014 дата публикации

METHOD AND APPARATUS FOR DYNAMICALLY ALLOCATING HARQ PROCESSES IN THE UPLINK

Номер: US20140153529A1
Автор: Cave Christopher, GRANDHI Sudheer A., Marinier Paul, Reznik Alexander, Terry Stephen E., Zeira Eldad M.
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

Methods and apparatus for dynamically allocating HARQ processes are described. A wireless transmit/receive unit (WTRU) includes a receive unit configured to receive signaling and a transmit unit. The transmit unit is configured to transmit uplink data sequentially using a first integer number of hybrid automatic repeat request (HARQ) processes during normal HARQ operation and transmit uplink data using a second integer number of HARQ processes that is less than the first number of HARQ processes in response to receiving the signaling. 1. A wireless transmit/receive unit (WTRU) comprising:a receive unit configured to receive signaling; and transmit uplink data sequentially using a first integer number of hybrid automatic repeat request (HARQ) processes during normal HARQ operation, and', 'transmit uplink data using a second integer number of HARQ processes that is less than the first number of HARQ processes in response to receiving the signaling., 'a transmit unit configured to2. The WTRU of claim 1 , wherein the transmit unit is further configured to transmit the uplink data using the second integer number of HARQ processes sequentially.3. The WTRU of claim 1 , wherein the first integer number of HARQ processes is 8.4. The WTRU of claim 1 , wherein the receive unit is configured to receive the signaling from a wireless network.5. The WTRU of claim 1 , wherein the transmit unit is further configured to transmit the uplink data using one HARQ process in each of a plurality of transmission time intervals (TTIs).6. A method for use in a wireless transmit/receive unit (WTRU) comprising:the WTRU receiving signaling;the WTRU transmitting uplink data sequentially using a first integer number of hybrid automatic repeat request (HARQ) processes during normal HARQ operation; andthe WTRU transmitting uplink data using a second integer number of HARQ processes that is less than the first number of HARQ processes in response to receiving the signaling.7. The method of claim 6 , ...

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Номер записи: 26
17-03-2016 дата публикации

METHOD AND APPARATUS FOR ACCELERATED LINK SETUP

Номер: US20160081130A1
Автор: GRANDHI Sudheer A., Targali Yousif, Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A methods and apparatus may be used for accelerated link setup. A method may include a station (STA) acquiring information about an access point of an Institute of Electrical and Electronics Engineers (IEEE) 802.11 network in advance through a previously connected IEEE 802.11 interface and/or an interface other than the IEEE 802.11 network. The STA may use the acquired information during a link setup procedure between the STA and the access point. The information may include a suggestion for a specific procedure to complete the link setup procedure between the STA and the access point. 1. A method for use in an access point (AP) , the method comprising:receiving a probe request frame that includes a system configuration identifier;determining whether the received system configuration identifier matches a stored system configuration identifier;on a condition that the received system configuration identifier matches a stored system configuration identifier, transmitting a reduced probe response frame in response to the probe request frame; andon a condition that the received system configuration identifier does not match any stored system configuration identifier, transmitting a full probe response frame in response to the probe request frame.2. The method of claim 1 , wherein the received system configuration identifier is a configuration change count (CCC) value.3. The method of claim 1 , further comprising:incrementing a stored system configuration identifier each time a configuration change is detected.4. The method of claim 1 , wherein the probe request frame includes an address of the AP.5. An access point (AP) comprising:a receiver configured to receive a probe request frame that includes a system configuration identifier;a processor configured to determine whether the received system configuration identifier matches a stored system configuration identifier;a transmitter configured, on a condition that the received system configuration identifier matches a ...

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Номер записи: 27
16-03-2017 дата публикации

Methods and apparatus for mass email detection and collaboration

Номер: US20170078227A1
Автор: Bharath Sridhar, Sudheer A. Grandhi
Принадлежит: Zoho Corp Pvt Ltd

A method and system for providing a communication stream for associating messages are described. A communication stream receives various message types including messages, posts, events, tasks, and comments, and presents them to users. Private messages relating to one or more messages may be sent between and among one or more users.

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Номер записи: 28
05-03-2020 дата публикации

Methods and Systems for Grouping and Prioritization of Website Visitors for Live Support

Номер: US20200074519A1
Автор: Devageorge Jeri John Prabhu, Grandhi Sudheer A, Vembu Manikandan
Принадлежит:

A networked communication system allows a vendor that maintains a web site to prioritize, select, and establish human-assisted interaction with visitors to the website. The vendor's human help agents are provided with intuitive interfaces that depict visitor priority based on agent-specific ranking rules. Agents can manage these rules to optimize their performance in responding to visitors, and thus improve the quality of visitors' experiences. 1. A method for prioritizing potential sources of revenue for a business , the method comprising:obtaining customer relationship management (CRM) information about the potential sources of revenue;ranking the potential sources of revenue responsive to the CRM information, the ranking prioritizing the potential sources of revenue according to CRM criteria including a potential value that is calculated by a CRM application and a time during which the potential sources of revenue have interacted with the business;rendering a view of the ranking, the view depicting the priority of the potential sources of revenue along plural dimensions, including depicting visual representations of the priority of the potential sources of revenue as being separated from a reference point by a respective distance, the view representing the priority of the potential sources of revenue as a vector from the reference point; andconveying the view to a user interface.2. The method of wherein obtaining the CRM information includes obtaining experiential information from visitors.3. The method of wherein at least one of the visitors is an email user claim 2 , and wherein the experiential information includes email activity.4. The method of wherein at least one of the visitors is a physical visitor claim 2 , and wherein the experiential information includes physical activity.5. The method of wherein at least one of the visitors is a website visitor claim 2 , and wherein the experiential information includes website activity.6. The method of claim 1 , ...

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Номер записи: 29
18-03-2021 дата публикации

METHODS AND APPARATUS FOR ENHANCING ELECTRONIC PRESENTATIONS WITH A SHARED ELECTRONIC POINTER

Номер: US20210081161A1
Автор: Dandapani Rajendran, GRANDHI Sudheer A., Jambulingam Karthikeyan, Rajendran Vijaykumar, Vegesna Ramakrishna Raju, Vembu Sridhar
Принадлежит:

A system and method for communicating a multimedia presentation between a presenter and an audience is described. Services provided via a network facilitate the communication, and include real-time determination of remaining portions of a presentation responsive to “on the fly” presentation modifications, automated filtering and prioritization of audience feedback to a presenter, integration with one or more customer data resources, and repositioning of a shared electronic pointer by reorienting a wireless handheld presenter device. 1. A computer-implemented method of facilitating communication between a presenter of a multimedia presentation and audience members of the presentation , the computer-implemented method comprising:providing a presenter interface to a wireless handheld presenter device via a network, the presenter interface including flow control commands that allow the presenter to control movement and flow of the multimedia presentation;providing a presentation interface including flow control commands that allow the presenter to control movement and flow of the multimedia presentation, for the multimedia presentation to a presentation device via the network;activating, by the server, an electronic pointer in response to receiving an input on a screen of the wireless handheld presenter device;sending, by the server, the electronic pointer to the presentation device, wherein the sending the electronic pointer is responsive to the activation of the electronic pointer, and wherein a first position of the electronic pointer corresponds to a pointer position on the screen of the wireless handheld presenter device; andsending, by the server, a second position of the electronic pointer to the presentation device, wherein the sending of the second position of the electronic pointer is in response to receiving a communication that the wireless handheld presenter device has been reoriented in direction or location in space.2. The computer-implemented method of ...

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Номер записи: 30
16-03-2017 дата публикации

METHOD AND APPARATUS FOR ACCELERATED LINK SETUP

Номер: US20170079078A1
Автор: GRANDHI Sudheer A., Targali Yousif, Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A methods and apparatus may be used for accelerated link setup. A method may include a station (STA) acquiring information about an access point of an Institute of Electrical and Electronics Engineers (IEEE) 802.11 network in advance through a previously connected IEEE 802.11 interface and/or an interface other than the IEEE 802.11 network. The STA may use the acquired information during a link setup procedure between the STA and the access point. The information may include a suggestion for a specific procedure to complete the link setup procedure between the STA and the access point. 1. A method for use in a non-access point (non-AP) station (STA) , the method comprising:receiving, by the non-AP STA from an access point (AP), a fast initial link setup (FILS) discovery frame, wherein the FILS discovery frame comprises a service set identification (SSID) and a corresponding system configuration identifier;on a condition that the received SSID and received system configuration identifier match a stored SSID and a corresponding stored system configuration identifier, initiating a FILS procedure between the non-AP STA and the AP; andon a condition the received SSID and received system configuration identifier do not match the stored SSID and the corresponding stored system configuration identifier, transmitting a probe request frame to the AP, wherein the probe request frame includes the stored system configuration identifier.2. The method of claim 1 , wherein the FILS procedure is an Internet Protocol (IP) layer setup procedure.3. The method of claim 1 , wherein the FILS procedure is a FILS association procedure.4. The method of claim 1 , wherein the received system configuration identifier is an integer value that represents a configuration instance.5. The method of claim 1 , wherein the received system configuration identifier is a configuration change count (CCC) value.6. The method of claim 1 , wherein the FILS procedure between the non-AP STA and the AP is ...

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Номер записи: 31
22-03-2018 дата публикации

METHOD AND APPARATUS FOR SUPPORTING WIDEBAND AND MULTIPLE BANDWIDTH TRANSMISSION PROTOCOLS

Номер: US20180084580A1
Автор: Anepu Bhaskar M., GRANDHI Sudheer A., Wang Xiaofei
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, an access point (AP) may receive, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit. On a condition that the individual/group bit of the BSSID field has a value of one (1), the AP may determine that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU. The AP may then transmit a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame. 1. A method for use in an access point (AP) , the method comprising:receiving, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit;on a condition that the individual/group bit of the BSSID field has a value of one (1), determining that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU; andtransmitting a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame.2. The method of claim 1 , wherein the TXOP being truncated by the WTRU is a wideband TXOP.3. The method of claim 2 , wherein the wideband TXOP is an 80 MHz transmission.4. The method of claim 2 , wherein the wideband TXOP is a 160 MHz transmission.5. The method of claim 4 , wherein the 160 MHz transmission is an 80 MHz+80 MHz transmission.6. The method of claim 1 , further comprising: transmitting the second CF-End frame after an inter-frame space ...

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Номер записи: 32
24-03-2016 дата публикации

METHODS AND APPARATUS FOR DOCUMENT CREATION VIA EMAIL

Номер: US20160087929A1
Автор: Grandhi Sudheer A, Jambulingam Karthikeyan, Sundaram Vijay, Vembu Sridhar
Принадлежит:

A system and method for creating a document in a messaging environment is described. A communication including a document specification including zero or more formatting commands and content is received from a sender and processed. The system and method determine whether the document specification is in a done condition, and iterates until done. A formatted document is also created and returned to the sender and recipients. 1. A computer-implemented method for creating a document , the method comprising:receiving a first communication from a first sender, the first communication identifying zero or more recipients, the first communication including a document specification including zero or more formatting commands and content;parsing the first communication, the parsing including determining whether the document specification is in a done condition;applying the zero or more formatting commands to the content, wherein the applying comprises producing a document;storing the document;transmitting information for accessing the document to the first sender, and to the zero or more recipients; anditerating until the document specification is in a done condition.2. The computer-implemented method of claim 1 , wherein the receiving the first communication is via email.3. The computer-implemented method of claim 1 , the first communication further comprising one or more address fields claim 1 , the zero or more recipients identified in the one or more address fields claim 1 , the one or more address fields corresponding to one or more document access privileges for the zero or more recipients.4. The computer-implemented method of claim 1 , wherein the transmitting information for accessing the document includes transmitting the document itself.5. The computer-implemented method of claim 1 , wherein the zero or more formatting commands comprise plain text.6. The computer-implemented method of claim 1 , further comprising in response to receiving the zero or more formatting ...

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Номер записи: 33
24-03-2016 дата публикации

EMAIL INTERFACE FOR APPLICATION CREATION AND MANAGEMENT

Номер: US20160087930A1
Автор: GRANDHI Sudheer A., Sridhar Bharath, Vembu Sridhar
Принадлежит:

A system and method for creating, managing, and using an application in a messaging environment is described. A communication including an application specification comprising zero or more commands is received from a sender and processed. The system and method determine whether the application specification is in a done condition, and iterates until done. A confirming specification, including revisions made while iterating, is also created and returned to the sender and recipients. 1. A computer-based method comprising:associating a software service with an email address;receiving a first email message directed to the email address;parsing the first email message to determine an application specification, the application specification identifying an input-data variable and a function; andcreating an application product that applies the function to the input-data variable.2. The method of claim 1 , further comprising identifying a sender of the first email message and replying to the sender with a second email message.3. The method of claim 2 , wherein the second email message includes information for accessing the application product.4. The method of claim 2 , wherein the second email message includes the determined application specification.5. The method of claim 2 , wherein the first email message includes a plurality of email addresses other than the email address claim 2 , and wherein the second email message is addressed to the plurality of email addresses.6. The method of claim 2 , further comprising identifying a missing requirement in the first email message and prompting the sender for the missing requirement in the second email message.7. The method of claim 6 , further comprising:receiving a third email message including the missing requirement; andupdating the application product responsive to the missing requirement.8. The method of claim 7 , wherein updating the application product comprises amending the application specification to include the missing ...

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Номер записи: 34
02-04-2015 дата публикации

METHODS AND SYSTEMS FOR PROVIDING EFFICIENT OPERATION OF MULTIPLE MODES IN A WLAN SYSTEM

Номер: US20150092720A1
Автор: GRANDHI Sudheer A., Levy Joseph S., Sammour Mohammed
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus that applies medium access control (MAC) transmission opportunity (TXOP) protection for multiple mode operation in a WLAN system. In particular, MAC mechanisms are defined to support multiple mode CTS frames, and multiple mode CF-End frames sent by the AP, each in a format appropriate for the corresponding mode which may also apply to a single mode. MAC mechanisms permit truncation of TXOP duration for releasing the unused portion of the TXOP when no further data for transmission is available. Release of unused protected TXOP is possible for both protected AP transmissions and STA transmissions. 1. A method for use in an access point (AP) , the method comprising:receiving a request-to-send (RTS) frame from a station (STA), wherein the RTS frame indicates a request for a transmit opportunity (TXOP);transmitting, in response to the RTS frame, an indication of a TXOP, wherein the indication of a TXOP is a space-time block code (STBC) clear-to-send (CTS) frame and a non-STBC CTS frame;receiving packet data from the STA during the TXOP;receiving, on a condition that the STA does not have further packet data to transmit, an indication of truncation of the TXOP including a first STBC contention free (CF)-End frame or a first non-STBC CF-End frame; andtransmitting a second STBC CF-End frame and a second non-STBC CF-End frame.2. The method of claim 1 , wherein the receiving the indication of truncation of the TXOP occurs on a condition that sufficient TXOP duration is remaining.3. The method of claim 2 , wherein the remaining TXOP duration is sufficient on a condition that the remaining TXOP duration is greater than a sum of a CF-End frame duration claim 2 , an STBC CF-End frame duration claim 2 , a non-STBC CF-End frame duration claim 2 , and two short interframe spacing (SIFS) durations.4. The method of claim 1 , wherein the indication of truncation of the TXOP indicates a network allocation vector (NAV) reset to the AP.5. The method of claim 1 , ...

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Номер записи: 35
19-06-2014 дата публикации

METHOD AND APPARATUS FOR SENDING AND RECEIVING CHANNEL QUALITY INDICATORS (CQIs)

Номер: US20140169304A1
Автор: Cave Christopher R., DiGirolamo Rocco, GRANDHI Sudheer A., Marinier Paul, Roy Vincent
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus for sending and receiving channel quality indicators (CQIs) is disclosed. A CQI may be periodically sent or received. A CQI may also be sent or received upon request by a network. 1. A wireless transmit/receive unit (WTRU) comprising:a processor configured to periodically send, via an uplink channel, channel quality indicators (CQIs);the processor further configured to decode a downlink control channel associated with a radio network temporary identifier (RNTI) of the WTRU;the processor further configured to determine, in response to decoding of the downlink control channel associated with the RNTI of the WTRU, that a wireless network requests the WTRU to send a CQI; andthe processor further configured to send the CQI, in response to the determination that the wireless network requests the WTRU to send the CQI, to the wireless network.2. The WTRU of wherein the uplink channel is one of a shared channel claim 1 , a common channel claim 1 , or a random access channel (RACH).3. The WTRU of further comprising:the processor further configured to send, to the wireless network, acknowledgements and negative acknowledgements via the uplink channel.4. The WTRU of wherein the WTRU is further configured to send the CQI via the uplink channel.5. The WTRU of wherein the downlink control channel is a shared channel.6. The WTRU of wherein the downlink control channel is a high speed shared control channel (HS-SCCH).7. The WTRU of wherein the determination that the wireless network requests the WTRU to send the CQI is one of a trigger or a poll.8. The WTRU of wherein the RNTI is detected or received by the WTRU on the downlink control channel.9. A method performed by a wireless transmit/receive unit (WTRU) claim 1 , the method comprising:periodically sending, by the WTRU via an uplink channel, channel quality indicators (CQIs);decoding, by the WTRU, a downlink control channel associated with a radio network temporary identifier (RNTI) of the WTRU;determining, ...

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Номер записи: 36
30-03-2017 дата публикации

User interfaces and associated processes for information resources

Номер: US20170090565A1
Автор: Sudheer A. Grandhi
Принадлежит: Individual

Methods and systems are disclosed for user interfaces and associated processes in computer applications and operating systems to provide an information resource area with information resources. In some embodiments, an information resource area is opened in response to detection of a user being idle for a predefined length of time with respect to an executing software program. In other embodiments an information resource area is opened in response to detection of a gesture by a user on the user interface displaying an executing software program. Various embodiments for rendering the information resource area and information resources are disclosed. Maintenance of the information resource area and the information resources may be based on user preferences. Embodiments for rendering the information resource area in conjunction with screen lock are also provided. In addition a multi-passcode security feature allowing device access at different levels of partial functionality is disclosed.

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Номер записи: 37
30-03-2017 дата публикации

METHOD AND APPARATUS FOR ENHANCING RLC FOR FLEXIBLE RLC PDU SIZE

Номер: US20170094560A1
Автор: GRANDHI Sudheer A., Marinier Paul, Miller James M., Pani Diana, Terry Stephen E.
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

Enhancements are provided for the radio link control (RLC) protocol in wireless communication systems where variable RLC packet data unit (PDU) size is allowed. When flexible RLC PDU sizes are configured by upper layers, radio network controller (RNC)/Node B flow control, RLC flow control, status reporting and polling mechanisms are configured to use byte count based metrics in order to prevent possible buffer underflows in the Node B and buffer overflows in the RNC. The enhancements proposed herein for the RLC apply to both uplink and downlink communications. 110-. (canceled)11. A network entity comprising:a memory; anda processor, wherein the network entity is configured at least in part to:receive, from a Node B, a control frame indicating a capacity allocation is a byte allocation, wherein the network entity is a radio network controller (RNC);determine that flexible medium access control-d (MAC-d) packet data unit (PDU) size is configured;determine a capacity allocation for a data flow by multiplying a credit by a maximum PDU size, wherein the credit is a number of PDUs, and wherein the capacity allocation is calculated as a number of octets; andtransfer a number of MAC-d PDUs without violating the capacity allocation.12. The network entity of claim 11 , wherein the network entity is further configured claim 11 , at least in part claim 11 , to:store a mapping of a PDU sequence number (SN) to an associated length in bytes; andtransmit PDUs without exceeding the number of bytes of credit.13. The network entity of claim 11 , wherein the RNC is a serving RNC (SRNC).14. The network entity of claim 11 , wherein the RNC is a controlling RNC (CRNC).15. The network entity of claim 11 , herein the network entity is further configured claim 11 , at least in part claim 11 , to receive a specified time to transmit under the granted capacity allocation.16. A method comprising:receiving, from a Node B, a control frame indicating that a capacity allocation is a byte allocation ...

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Номер записи: 38
26-06-2014 дата публикации

FAST UPLINK RESPONSE TO DOWNLINK SHARED CHANNEL TRANSMISSION WITHOUT A DEDICATED UPLINK CHANNEL

Номер: US20140177565A1
Автор: Cave Christopher, Di Girolamo Rocco, GRANDHI Sudheer A., Marinier Paul, Reznik Alexander, Zeira Eldad M.
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus for uplink transmission over a non-contentious shared feedback channel are disclosed, wherein the parameters of the uplink transmission are determined by the parameters of a downlink transmission. A new uplink channel, called a physical shared uplink feedback channel (PSUFCH) is used for uplink transmission such as feedback information in response to a downlink transmission on a fast shared data channel. The content of the feedback information may be general, e.g. an ACK/NACK or a channel quality indicator (CQI). The PSUFCH is transmitted using power ramping that terminates upon reception of a downlink ACK (DLACK) from a Node-B. No ambiguity resolution is required due to the non-contentious and deterministic mapping of the uplink channel resources. 1. A method for uplink transmission , the method comprising:receiving a downlink transmission via a high speed downlink shared channel; andtransmitting an uplink transmission via a physical shared uplink feedback channel (PSUFCH) wherein at least one uplink transmission parameter is determined based on at least one downlink parameter used for the downlink transmission.2. The method of further comprising:implementing a configurable transmission power ramp up so that the uplink transmission is transmitted at least one time wherein transmission power is maintained or ramped up each time the uplink transmission is retransmitted.3. The method of wherein transmission is repeated until a downlink acknowledgement (DLACK) is received but not to exceed a predetermined number of transmissions.4. The method of claim 3 , wherein transmission is repeated until a maximum number of transmission is attained.5. The method of claim 3 , wherein the transmission is repeated until a maximum transmission time is attained.6. The method of wherein the uplink transmission is a channel quality indicator (CQI).7. The method of wherein the CQI is transmitted as feedback in response to the downlink transmission and interpreted ...

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Номер записи: 39
12-05-2022 дата публикации

USER INTERFACE ENHANCEMENTS AND ASSOCIATED PROCESSES IN EMAIL COMMUNICATION

Номер: US20220150208A1
Автор: GRANDHI Sudheer A.
Принадлежит:

Methods and systems are disclosed for enhancements in email communication. In some embodiments, address-context information of an email message is rendered to aid the user in various user interface scenarios. These scenarios include user interfaces for a Reply All command and a Send command. The activation of the Reply All command in some embodiments is enabled with a predefined gesture on the user interface that is different from a gesture or gestures used for other commands such as the Reply command. The gesture required for the activation of the Send command can be changed based on the command that was activated to create the email message to be sent. 1. A method for email communication , executed at least in part in a computer system , the method comprising:receiving an incoming email message to a user, having at least one address list identifying message recipients, including the user and all other message recipients;deriving address-context information from the at least one address list;rendering the incoming email message;rendering a Reply All icon associated with the incoming email message, the Reply All icon extending over a Reply-All-icon area; andproviding at least a part of the address-context information from the at least one address list as part of the Reply All icon and within the Reply-All-icon area.2. The method of claim 1 , wherein the address-context information includes an abbreviated description of the at least one address list.3. The method of claim 1 , further comprising claim 1 , detecting input from the user over the Reply All icon and responsive to the input from the user over the Reply All icon claim 1 , creating an outgoing email message to a sender of the incoming email message and the all other message recipients of the at least one address list.4. The method of claim 1 , the method further comprising rendering a Reply icon associated with the incoming email message claim 1 , the Reply icon extending over a Reply-icon area on a user ...

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Номер записи: 40
13-04-2017 дата публикации

METHODS AND APPARATUS FOR AUTOMATICALLY CREATING MULTIMEDIA PRESENTATIONS

Номер: US20170102912A1
Автор: GRANDHI Sudheer A., Jambulingam Karthikeyan, Rajendran Vijaykumar, Vembu Sridhar
Принадлежит:

A system and method for communicating a multimedia presentation between a presenter and an audience is described. Services provided via a network facilitate the communication, and include real-time determination of remaining portions of a presentation responsive to “on the fly” presentation modifications, automated filtering and prioritization of audience feedback to a presenter, and integration with one or more customer data resources. 1. A computer-implemented method for automatically creating a multimedia presentation , the computer-implemented method comprising:receiving a request to create a first multimedia presentation, the request identifying selection criteria and one or more pre-existing multimedia presentations including a first pre-existing multimedia presentation;receiving, via a network, first customer data corresponding to the selection criteria;responsive to the first customer data, selecting a first portion from the first pre-existing multimedia presentation; andstoring and associating the first portion with the first multimedia presentation.2. The computer-implemented method of claim 1 , wherein the first customer data includes data from a third party.3. The computer-implemented method of claim 1 , further comprising claim 1 , responsive to the first customer data claim 1 , selecting a second portion of the first pre-existing multimedia presentation claim 1 , and storing and associating the second portion with the first multimedia presentation.4. The computer-implemented method of claim 1 , wherein the first customer data includes a tag.5. The computer-implemented method of claim 1 , wherein the first multimedia presentation is tailored to at least one potential attendee in relation to customer data.6. The computer-implemented method of claim 5 , further comprising providing to the at least one potential attendee claim 5 , a URL to the first multimedia presentation.7. The computer-implemented method of claim 5 , further comprising providing an ...

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Номер записи: 41
03-07-2014 дата публикации

METHOD AND APPARATUS FOR PROVIDING VERY HIGH THROUGHPUT OPERATION AND CAPABILITY SIGNALING FOR WIRELESS COMMUNICATIONS

Номер: US20140185559A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus are disclosed for enabling very high throughput (VHT) communications. A wireless transmit and receive unit (WTRU) may receive, from an access point (AP), a management frame comprising VHT capabilities information. The VHT capabilities information may comprise an indication of support for reception via non-contiguous channels. The WTRU may transmit, on a condition that reception via non-contiguous channels is supported, at least one data packet, to the AP, via multiple non-contiguous channels. The multiple non-contiguous channels may be used simultaneously. 1. A wireless transmit and receive unit (WTRU) comprising:a receiver configured to receive, from an access point (AP), a management frame comprising very high throughput (VHT) capabilities information, wherein the VHT capabilities information comprises an indication of support for reception via non-contiguous channels; anda transmitter configured to transmit, on a condition that reception via non-contiguous channels is supported, at least one data packet, to the AP, via multiple non-contiguous channels.2. The WTRU of claim 1 , wherein the VHT capabilities information comprises power control information.3. The WTRU of claim 1 , wherein the VHT capabilities information comprises frequency reuse capabilities.4. The WTRU of claim 1 , wherein the non-contiguous channels are used simultaneously.5. The WTRU of wherein each of the non-contiguous channels is formed from a group of contiguous channels.6. A method of communicating very high throughput (VHT) capability information from a wireless transmit/receive unit (WTRU) comprising:receiving a management frame comprising VHT capabilities information from an access point (AP), wherein the VHT capabilities information comprises an indication of support for reception via non-contiguous channels; andtransmitting at least one data packet to the AP via multiple non-contiguous channels, on a condition that reception via non-contiguous channels is supported ...

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Номер записи: 42
12-04-2018 дата публикации

METHOD AND APPARATUS FOR PROVIDING VERY HIGH THROUGHPUT OPERATION AND CAPABILITY SIGNALING FOR WIRELESS COMMUNICATIONS

Номер: US20180103410A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus are disclosed for enabling very high throughput (VHT) communications. A wireless transmit and receive unit (WTRU) may receive, from an access point (AP), a management frame comprising VHT capabilities information. The VHT capabilities information may comprise an indication of support for reception via non-contiguous channels. The WTRU may transmit, on a condition that reception via non-contiguous channels is supported, at least one data packet, to the AP, via multiple non-contiguous channels. The multiple non-contiguous channels may be used simultaneously. 120-. (canceled)21. A wireless transmit and receive unit (WTRU) comprising:a receiver configured to receive a management frame comprising very high throughput (VHT) capabilities information from an access point (AP), wherein the VHT capabilities information comprises an indication of support for reception via non-contiguous channels, an indication for support of multi-user multiple input multiple output (MU-MIMO) beamforming, and an indication for support of VHT link adaptation; anda transmitter configured to transmit at least one data packet to the AP via multiple non-contiguous channels on a condition that reception via non-contiguous channels is supported, wherein one of the multiple non-contiguous channels is a primary channel.22. The WTRU of claim 21 , wherein VHT capabilities information Further comprises an indication of support for a short guard interval (GI) for reception of packets with a channel bandwidth claim 21 , an indication for a support of channel widths supported claim 21 , and an indication of whether the AP supports power save mode.23. The WTRU of claim 22 , wherein the channel bandwidth is 80 MHz.24. The WTRU of claim 21 , wherein the VHT capabilities information comprises power control information.25. The WTRU of claim 21 , wherein the VHT capabilities information comprises frequency reuse capabilities.26. The WTRU of claim 21 , wherein the non-contiguous channels are ...

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Номер записи: 43
11-04-2019 дата публикации

NON-LEGACY PREAMBLE FOR WIRELESS LOCAL AREA NETWORKS

Номер: US20190109681A1
Автор: Ghosh Monisha, GRANDHI Sudheer A., Lou Hanqing, Murias Ronald G., Olesen Robert L., Shah Nirav B., Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

Method and apparatus for transmission and reception of a Greenfield preamble are provided. In the method and apparatus, the Greenfield preamble may be a single user (SU) preamble or a multi user (MU) preamble. As an MU preamble, the Greenfield preamble includes a short training field (STF), a first long training field (LTF), a first signal (SIG) field, at least one additional LTF, and a second SIG field. Additionally, the Greenfield preamble may be utilized for efficient transmission and reception of control information to wireless devices, whereby the control information may be indicated using the STF, the first LTF, or the first or second SIG fields. 1. A wireless transmit/receive unit (WTRU) comprising:a transceiver configured to receive a signal;a processor configured to determine, from the received signal, a type of multiple input multiple output (MIMO) by checking an indicator in the received signal; andon a condition that multi-user (MU)-MIMO is determined, the processor further configured to interpret a field of the received signal as being a MU-preamble format to demodulate a data packet in the received signal;on a condition that single-user (SU)-MIMO is determined, the processor further configured to interpret a field of the received signal as being a SU-preamble format to demodulate the data packet in the received signal.2. The WTRU of claim 1 , wherein the field is a non-legacy portion of a preamble.3. The WTRU of claim 1 , wherein the field is a legacy portion of a preamble.4. The WTRU of claim 1 , wherein the field is a mixed format preamble.5. The WTRU of claim 1 , wherein the WTRU is a station (STA).6. The WTRU of claim 1 , wherein the field is a signal (SIG) field.7. The WTRU of claim 6 , wherein the SIG field is a SIG-A field.8. The WTRU of claim 1 , wherein the processor is further configured to interpret claim 1 , on a condition that MU-MIMO is determined claim 1 , control information from the received signal.9. The WTRU of claim 1 , wherein the ...

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Номер записи: 44
26-04-2018 дата публикации

SUPPORTING A LARGE NUMBER OF DEVICES IN WIRELESS COMMUNICATIONS

Номер: US20180115922A1
Автор: GRANDHI Sudheer A., Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method for receiving a backoff value at a wireless station is presented. A traffic indication map is received at the station, wherein a backoff number is implicitly assigned to the station based on a position of the station within the traffic indication map. The backoff value is determined by multiplying the backoff number by a predetermined time value. 124-. (canceled)25. A method to provide access to a medium , the method comprising:receiving a time value at a wireless station;receiving a traffic indication map (TIM) element at the wireless station, wherein the TIM element comprises bits mapped to an association identifier (AID) of the wireless station;on a condition that an indication for accessing a channel in a time interval for wireless stations having AIDs associated with a positive indication in the TIM element is received at the wireless station, determining a backoff number for the wireless station as a function of an index of the AID of the wireless station; anddetermining a medium access backoff time for the wireless station based on the backoff number and the time value.26. The method according to claim 25 , wherein the time value is a fixed value.27. The method according to claim 25 , wherein the time value is received at the wireless station via a beacon or a short beacon.28. The method according to claim 25 , further comprising:setting a backoff timer at the wireless station with the medium access backoff time; andattempting to send a communication by the wireless station after the backoff timer has expired.29. The method according to claim 25 , wherein the medium access backoff time is a slot time.30. The method according to claim 25 , further comprising signaling the medium access backoff time using at least one of a beacon or a short beacon.31. The method according to claim 25 , wherein the index is associated with the positive indication in the TIM element.32. A wireless station claim 25 , comprising: receive a time value at a wireless station ...

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Номер записи: 45
13-05-2021 дата публикации

METHODS AND APPARATUS FOR DOCUMENT CREATION VIA EMAIL

Номер: US20210141916A1
Автор: Grandhi Sudheer A, Jambulingam Karthikeyan, Sundaram Vijay, Vembu Sridhar
Принадлежит: Zoho Corporation Private Limited

A system and method for creating a document in a messaging environment is described. A communication including a document specification including zero or more formatting commands and content is received from a sender and processed. The system and method determine whether the document specification is in a done condition, and iterates until done. A formatted document is also created and returned to the sender and recipients. 11. A computer-implemented method for creating a document , the method comprising:receiving at least one electronic communication from a sender, the at least one electronic communication including a document specification having at least one formatting command and document content;parsing the at least one electronic communication by a computer, the parsing including determining whether the document specification is in a done condition at least in part by determining by the computer whether the document specification includes a textual command indicating that the document specification is in the done condition;creating the document responsive to the at least one electronic communication, the creating including applying the at least one formatting command to the document content;storing the document; andtransmitting information for accessing the document to the sender.21. The computer-implemented method of claim , wherein the receiving the at least one electronic communication is via email.31. The computer-implemented method of claim , further comprising identifying at least one recipient in the at least one electronic communication , and transmitting the information for accessing the document to the at least one recipient.4. The computer-implemented method of claim 3 , the at least one electronic communication further comprising one or more address fields identifying the at least one recipient and corresponding to one or more document access privileges for the at least one recipient.51. The computer-implemented method of claim claim 3 , further ...

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Номер записи: 46
09-06-2022 дата публикации

METHOD AND SYSTEM FOR IMPROVING RESPONSIVENESS IN EXCHANGING FRAMES IN A WIRELESS LOCAL AREA NETWORK

Номер: US20220182875A1
Автор: Chandra Arty, GRANDHI Sudheer A., Sammour Mohammed, Zeira Eldad M.
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and system for improving responsiveness in exchanging management and control frames in a wireless local area network are disclosed. An initiator sends a frame (action frame, management frame, CSI frame, control frame, or data frame) to a responder. Upon correctly receiving the frame, the responder sends a response frame to the initiator instead of directly sending an acknowledgement (ACK) packet. The responder preferably accesses the wireless medium to send the response frame in a short inter-frame spacing (SIFS). With this scheme, a long delay associated with having to contend for the wireless medium to send the response frame is avoided and therefore, the responsiveness and timeliness of the feedback mechanism is significantly enhanced. The response frame may be piggybacked on or aggregated with another packet. 1. A method for use by a first station (STA) , the method comprising:transmitting, by the first STA to a second STA, a modulation and coding scheme (MCS) request frame including a request identity number;receiving, by the first STA from the second STA, an MCS feedback frame, wherein the MCS feedback frame includes a request identity field that indicates the request identity number included in the MCS request frame.2. The method of claim 1 , wherein the STA is an access point (AP) STA.3. The method of claim 1 , wherein the request identity number indicated the request identity field unambiguously identifies the MSC request frame. This application is a continuation of U.S. patent application Ser. No. 14/477,247, filed Sep. 4, 2014, which claims the benefit of U.S. Provisional application Ser. No. 11/393,303, filed Mar. 29, 2006, which claims the benefit of U.S. Provisional Application Nos. 60/668,154, filed Apr. 4, 2005, and 60/670,858, filed Apr. 13, 2005, which are incorporated by reference as if fully set forth.The present invention is related to a wireless local area network (WLAN). More particularly, the present invention is related to a method ...

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Номер записи: 47
24-07-2014 дата публикации

METHOD AND SYSTEM FOR CONTROLLING ACCESS TO A WIRELESS COMMUNICATION MEDIUM

Номер: US20140204827A1
Автор: Chandra Arty, GRANDHI Sudheer A., Levy Joseph S., Shaheen Kamel M., Terry Stephen E., Zeira Eldad
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used to broadcast a first beacon and a second beacon in a beacon interval. The first beacon may include an indicator that indicates whether a second beacon will be transmitted within the beacon interval. The first beacon may be a legacy beacon and the second beacon may be a non-legacy beacon. A legacy beacon may be decodable by any station (STA) and a non-legacy beacon may be decodable only by non-legacy STAs. 1. A method for use in an Institute of Electrical and Electronics Engineers (IEEE) 802.11n access point (AP) , the method comprising:broadcasting, by the IEEE 802.11n AP, an IEEE 802.11 legacy beacon in a beacon interval, wherein the IEEE 802.11 legacy beacon is decodable by legacy IEEE 802.11 stations (STA)s and IEEE 802.11n STAs and includes an indication of whether a second beacon will be broadcasted by the IEEE 802.11n AP within the beacon interval; andbroadcasting, by the IEEE 802.11n AP, the second beacon in the beacon interval, wherein the second beacon is an IEEE 802.11n beacon that is decodable only by IEEE 802.11n STAs.2. The method of claim 1 , wherein the indication of whether a second beacon will be broadcasted by the IEEE 802.11n AP within the beacon interval indicates when the IEEE 802.11n beacon will be broadcasted by the IEEE 802.11n AP within the beacon interval.3. The method of claim 1 , wherein the IEEE 802.11n beacon includes information included in the IEEE 802.11 legacy beacon.4. The method of claim 1 , wherein the IEEE 802.11n beacon is identical to the IEEE 802.11 legacy beacon.5. The method of claim 1 , wherein the IEEE 802.11n beacon includes an identification of the IEEE 802.11n beacon.6. The method of claim 1 , wherein the beacon interval is a time period between successive broadcasts of the IEEE 802.11 legacy beacon by the AP.7. The method of claim 1 , wherein the IEEE 802.11n beacon comprises an information element (IE) that indicates a plurality of supported rates.8. The method of claim 1 , wherein ...

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Номер записи: 48
04-05-2017 дата публикации

GROUP TRANSMISSIONS IN WIRELESS LOCAL AREA NETWORKS

Номер: US20170127310A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method for MU MIMO channel sounding by a STA includes receiving, from an AP, sounding information including an indication of a first STA of a group of STAs to transmit feedback and training symbols. The method further includes receiving, from the AP, a frame addressed to the group of STAs, wherein the frame includes a PHY preamble including group identification information identifying the group of STAs. The group identification information enables another STA not in the group of STAs, that receives the frame, to set its network allocation vector (NAV) timer based on a duration field in the frame. On a condition the STA is a first STA in the order of the group of STAs, a first sounding response frame may be transmitted to the AP, wherein the first sounding response frame includes quantized sounding feedback determined from the received training symbols. 1. A method for multi-user (MU) multiple-input multiple output (MIMO) channel sounding by a station (STA) , the method comprising:receiving, from an access point (AP), sounding information including an indication of a first STA of a group of STAs to transmit feedback and training symbols;receiving, from the AP, a frame addressed to the group of STAs, wherein the frame includes a PHY preamble including group identification information identifying the group of STAs, wherein the group identification information enables another STA not in the group of STAs, that receives the frame, to set its network allocation vector (NAV) timer based on a duration field in the frame; andon a condition the STA is a first STA in the order of the group of STAs, transmitting a first sounding response frame to the AP, wherein the first sounding response frame includes quantized sounding feedback determined from the received training symbols.2. The method of claim 1 , wherein the frame further includes a request for feedback for each STA in the group of STAs.3. The method of claim 1 , wherein the first sounding response frame from the first ...

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Номер записи: 49
25-04-2019 дата публикации

Method and apparatus for providing very high throughput operation and capability signaling for wireless communications

Номер: US20190124579A1
Автор: Sudheer A. Grandhi
Принадлежит: InterDigital Patent Holdings Inc

A method and apparatus are disclosed for enabling very high throughput (VHT) communications. A wireless transmit and receive unit (WTRU) may receive, from an access point (AP), a management frame comprising VHT capabilities information. The VHT capabilities information may comprise an indication of support for reception via non-contiguous channels. The WTRU may transmit, on a condition that reception via non-contiguous channels is supported, at least one data packet, to the AP, via multiple non-contiguous channels. The multiple non-contiguous channels may be used simultaneously.

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Номер записи: 50
19-05-2016 дата публикации

Methods and Systems for Grouping and Prioritization of Website Visitors for Live Support

Номер: US20160140635A1
Автор: Devageorge Jeri John Prabhu, GRANDHI Sudheer A., Vembu Manikandan
Принадлежит:

A networked communication system allows a vendor that maintains a website to prioritize, select, and establish human-assisted interaction with visitors to the website. The vendor's human help agents are provided with intuitive interfaces that depict visitor priority based on agent-specific ranking rules. Agents can manage these rules to optimize their performance in responding to visitors, and thus improve the quality of visitors' experiences. 1. A method for prioritizing website visitors to qualify for service , the method comprising:obtaining experiential information about the visitors during visitor access of the website;ranking the visitors responsive to the experiential information, the ranking prioritizing the visitors;rendering a view of the ranking, the view depicting the priority of the visitors along multiple spatial dimensions; andconveying the view to a user interface.2. The method of wherein the website is a server responsive to web beacons.3. The method of wherein the website visitor is an email user claim 2 , and wherein the experiential information includes email activity.4. The method of wherein the website visitor is a physical visitor claim 1 , and wherein the experiential information includes physical activity.5. The method of further comprising receiving experiential information from a client device.6. The method of claim 1 , further comprising claim 1 , responsive to an input from the user interface selecting one of the visitors in the view claim 1 , sending an invitation to that visitor to engage in communication.7. The method of claim 1 , further comprising automatically selecting one of the visitors in the view and sending an invitation to that visitor to engage in communication.8. The method of claim 1 , the rendering comprising arranging visual representations of the visitors relative to a reference location claim 1 , the view representing a first dimension of the priority of each visitor as a distance from the reference location.9. The ...

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Номер записи: 51
03-06-2021 дата публикации

METHOD AND APPARATUS FOR SUPPORTING WIDEBAND AND MULTIPLE BANDWIDTH TRANSMISSION PROTOCOLS

Номер: US20210168860A1
Автор: Anepu Bhaskar M., GRANDHI Sudheer A., Wang Xiaofei
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, an access point (AP) may receive, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit. On a condition that the individual/group bit of the BSSID field has a value of one (1), the AP may determine that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU. The AP may then transmit a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame. 1. A method for use in a station (STA) , the method comprising:receiving, by the STA configured to maintain a first Network Allocation Vector (NAV) and a second NAV, a Contention Free-End (CF-End) frame;resetting, on a condition that the CF-End frame is received from another STA in a first Basic Service Set (BSS) with which the STA is associated, the first NAV; andresetting, on a condition that the CF-End frame is received from another STA in a second BSS that is different than the first BSS with which the STA is associated, the second NAV.2. The method of claim 1 , further comprising:determining, on a condition that at least one of the first NAV or the second NAV is not reset or non-zero, that a medium is not available.3. The method of claim 1 , wherein the CF End frame includes an indication of a first BSSID that is associated with the first BSS or an indication of a second BSSID that is associated with a second BSS.4. The method of claim 3 , further comprising:determining, based on the first BSSID, that the first CF End frame is associated with the first BSS; ...

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Номер записи: 52
26-05-2016 дата публикации

METHODS AND APPARATUS FOR ENHANCED COMMUNICATION IN EMAIL APPLICATIONS

Номер: US20160149848A1
Автор: Dandapani Rajendran, Govindarajan Ravikumar, GRANDHI Sudheer A., Ranganathan Jagan, Sridhar Bharath, Vembu Radha, Vembu Sridhar
Принадлежит:

A method and system for providing a communication stream for associating messages are described. A communication stream receives various message types including messages, posts, events, tasks, and comments, and presents them to users. Private messages relating to one or more messages may be sent between and among one or more users. 1. A computer-implemented method for providing a communication stream for messages , the method comprising:receiving a request to create the communication stream, the request specifying users, including at least a first user;responsive to the request, creating the communication stream, the creating including assigning a stream identifier to the communication stream;receiving a request specifying a second user, and in response to the request, adding the second user to the communication stream;receiving a request specifying a third user, and in response to the request, adding the third user to the communication stream;receiving a non-private message from the first user, the non-private message referencing the stream identifier;associating the non-private message with the communication stream;providing a representation of the communication stream, including the non-private message, to the users;receiving a private message from the second user, the private message referencing the non-private message, referencing the stream identifier, and referencing a third user;associating the private message with the communication stream, and with the non-private message associated with the communication stream;providing a representation of the communication stream, including the non-private message and the private message, to the third user; andproviding a representation of the communication stream, including the non-private message sans the private message, to the first user.2. The computer-implemented method of claim 1 , the method further comprising providing a representation of the communication stream claim 1 , including the non-private message and ...

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Номер записи: 53
21-08-2014 дата публикации

METHOD AND APPARATUS FOR SUPPORTING MANAGEMENT ACTIONS FOR VERY HIGH THROUGHPUT IN WIRELESS COMMUNICATIONS

Номер: US20140233667A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus may be used in Very High Throughput (VHT) Wireless Local Area Network (WLAN) management actions. Management action frames such as VHT Action frames may be used to implement VHT features in WLANs. Extensions to 802.11 Action frames may be used to support VHT features and provide backward compatibility. VHT Management Actions may be supported with VHT Action frames and VHT extensions to 802.11 Action frames in various categories such as Direct Link Setup (DLS), Public, Spectrum Management and high throughput (HT). An access point (AP) or a wireless transmit/receive unit (WTRU) may indicate VHT capability by way of signaling. 1. A method for use in wireless communications , the method comprising:transmitting a sounding packet from an access point (AP); andreceiving, at the AP, a Very High Throughput (VHT) Compressed Beamforming frame, wherein the VHT Compressed Beamforming frame is an Action No Acknowledgement (ACK) frame and includes a VHT multiple input multiple output (MIMO) Control field, wherein the VHT MIMO Control field indicates a channel width related to a multi-channel non-contiguous spectrum transmission associated with the sounding packet.2. The method of claim 1 , wherein the VHT MIMO Control field indicates a number of columns in a matrix.3. The method of claim 1 , wherein the VHT MIMO Control field indicates a number of rows in a matrix.4. The method of claim 1 , wherein the VHT MIMO Control field indicates a bandwidth configuration that includes a plurality of secondary channels for a VHT multi-channel transmission relative to a primary channel.5. The method of claim 1 , wherein the VHT MIMO Control field includes a plurality of orthogonal frequency division multiplex (OFDM) sub-carriers claim 1 , wherein the OFDM sub-carriers are grouped in a set.6. The method of claim 1 , wherein the VHT MIMO Control field includes a plurality of bits that represent a real portion and an imaginary portion of each element in a channel state ...

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Номер записи: 54
21-08-2014 дата публикации

USER INTERFACES AND ASSOCIATED PROCESSES IN EMAIL COMMUNICATION

Номер: US20140237382A1
Автор: GRANDHI Sudheer A.
Принадлежит: COSMIC EAGLE, LLC

Methods and systems are disclosed for user interfaces and associated processes in email communication. In some embodiments, information such as address-context information of an email message is rendered to aid the user in various user interface scenarios. These scenarios include user interfaces for the Reply All command and the Send command. A Prompt is provided on the user interface in some embodiments for the usage of commands such as the Reply All command and Send command. The activation of the Reply All command in some embodiments is enabled with a predefined gesture on the user interface that is different from that used for other commands such as the Reply command. In other embodiments the gesture required for the activation of the Send command is changed based on the command that was activated to create the email message to be sent. 1. A method for email communication , executed at least in part in a computer system , the method comprising:receiving an incoming email message having an address list;deriving address-context information from the address list;rendering the incoming email message; andrendering a Reply All command associated with the incoming email message, the rendering of the Reply All command including at least a subset of the address-context information.2. The method of claim 1 , further comprising sending the rendered incoming email message and the rendered Reply All command to a webmail application.3. The method of claim 2 , wherein the computer system includes a webmail server to direct the rendered incoming email message to a portable client device claim 2 , and wherein the portable client device displays the rendered incoming email message.4. The method of claim 1 , further comprising displaying the rendered incoming email message and the rendered Reply All command within a web browser.5. The method of claim 1 , wherein rendering the incoming email message comprises displaying the incoming email message.6. The method of claim 1 , further ...

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Номер записи: 55
01-06-2017 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING ACKNOWLEDGEMENTS IN RESPONSE TO RECEIVED FRAMES

Номер: US20170155490A1
Автор: Ghosh Monisha, GRANDHI Sudheer A., Lou Hanqing, Wang Xiaofei
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

Methods and apparatuses are disclosed for transmitting a delayed multi-user acknowledgement (ACK) frame in response to data packets received from multiple stations in wireless communication. A recipient may be include at least one processor, a receiver and a transmitter. The processor is configured to establish a group of stations. The receiver is configured to receive packets from the group of stations over a delay period, and the at least one processor configured to generate a delayed multi-user acknowledgement (ACK) frame based on successful receipt of the packets over the delay period. The transmitter is configured to transmit the delayed multi-user ACK frame to the group of stations following the delay period. 1. An access point (AP) in a wireless communication network , comprising:at least one processor configured to establish a group of stations;a receiver configured to receive packets from the group of stations over a delay period;the at least one processor configured to generate a delayed multi-user acknowledgement (ACK) frame based on successful receipt of the packets over the delay period; anda transmitter configured to transmit the delayed multi-user ACK frame to the group of stations following the delay period.2. The AP of claim 1 , wherein the delayed multi-user ACK frame is a block ACK frame configured to acknowledge the packets successfully received from at least one station belonging to the group of stations.3. The AP of claim 1 , wherein the delayed multi-user ACK frame includes an indication indicating whether the delayed multi-user ACK frame is a block ACK frame or a non-block ACK frame.4. The AP of claim 1 , wherein the delay period expires in response to receiving an ACK request from at least one station of the group of stations or in response to an expiration of a delay timer corresponding to the delay period.5. The AP of claim 1 , wherein:the receiver is configured to receive a capability indication from each of a plurality of stations ...

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Номер записи: 56
01-06-2017 дата публикации

METHOD AND SYSTEM FOR CONTROLLING ACCESS TO A WIRELESS COMMUNICATION MEDIUM

Номер: US20170156104A1
Автор: Chandra Arty, GRANDHI Sudheer A., Levy Joseph S., Shaheen Kamel M., Terry Stephen E., Zeira Eldad M.
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used to broadcast a first beacon and a second beacon in a beacon interval. The first beacon may include an indicator that indicates whether a second beacon will be transmitted within the beacon interval. The first beacon may be a legacy beacon and the second beacon may be a non-legacy beacon. A legacy beacon may be decodable by any station (STA) and a non-legacy beacon may be decodable only by non-legacy STAs. 147-. (canceled)48. An Institute of Electrical and Electronics Engineers (IEEE) 802.11 access point (AP) comprising: broadcast a first beacon in a beacon interval, wherein the first beacon includes an indication of whether a second beacon will be broadcasted by the IEEE 802.11 AP within the beacon interval; and', 'on a condition that the first beacon indicates that a second beacon will be broadcasted, broadcast the second beacon in the beacon interval, wherein the second beacon is broadcasted using a data rate that is different than the first beacon., 'a transmitter configured to49. The IEEE 802.11 AP of claim 48 , wherein the first beacon includes information about the second beacon.50. The IEEE 802.11 AP of claim 49 , wherein the information about the second beacon comprises periodicity of the second beacon.51. The IEEE 802.11 AP of claim 48 , wherein the second beacon transmitted within the first beacon.52. The IEEE 802.11 AP of claim 48 , wherein the first beacon is an IEEE 802.11 legacy beacon and the second beacon is an IEEE 802.11 non-legacy beacon.53. The IEEE 802.11 AP of claim 48 , wherein range of the second beacon is greater than the first beacon.54. The IEEE 802.11 AP of claim 48 , wherein the second beacon is broadcasted at a lower data rate than the first beacon.55. The IEEE 802.11 AP of claim 48 , wherein the beacon interval is a time period between successive broadcasts of the first beacon.56. The IEEE 802.11 AP of claim 48 , wherein the second beacon comprises information elements corresponding to the first ...

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Номер записи: 57
22-09-2022 дата публикации

METHOD AND SYSTEM FOR BEACON INFORMATION PROVISIONING, TRANSMISSIONS AND PROTOCOL ENHANCEMENTS

Номер: US20220303890A1
Автор: Ghosh Monisha, GRANDHI Sudheer A., Lou Hanqing, Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method for beacon information provisioning, transmissions and protocol enhancements includes defining multiple level beacons based on the attributes of beacon information fields/elements. A short beacon may be used in addition to a primary beacon in space-time block code (STBC) modes, non-STBC modes and in multiple bandwidth modes. The short beacons may also be used for Fast Initial Link Setup (FILS) and to extend system coverage range. Beacon transmissions may use adaptive modulation and coding set/scheme (MCS). 1. A method implemented by a station (STA) in wireless communication with a wireless local area network , the method comprising:receiving a short beacon comprising a element that indicates a version of the short beacon; on a condition that the element indicates that the short beacon has not changed from a known version of the short beacon, accessing a medium; andon a condition that the element indicates that the short beacon has changed from a known version of the short beacon, performing at least one of decoding the short beacon or sending a probe request, and accessing the medium.2. The method of claim 1 , the element comprising a version number information field.3. The method of claim 1 , wherein the short beacon includes fast initial link setup (FILS) information claim 1 , the method further comprising:comparing information of a MLME-SCAN.request primitive with the FILS information;invoking a MLME-SCAN.confirm primitive in response to scan results;reporting the MLME-SCAN.confirm primitive on a condition that the comparing information produced a match; andselecting an access point AP, for linking on a condition that the STA determines that sufficient network service information was obtained from the scan and that the AP satisfies STA requirements.4. The method of claim 2 , wherein the version number information field comprises at least one of a Common Advertisement Group (CAG) number or an AP Configuration Sequence Number (AP-CSN).5. A method ...

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Номер записи: 58
08-06-2017 дата публикации

METHOD AND APPARATUS OF ENABLING MULTI BAND TRANSMISSION

Номер: US20170164307A1
Автор: GRANDHI Sudheer A., LIVET Catherine M., Sammour Mohammed, ZUNIGA Juan Carlos
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method for multi-band operation by a first transmit/receive unit (TRU) is disclosed. The method may comprise monitoring a plurality of frequency bands including a first band and a second band. A first beacon may be received on the first band and a determination may be made, based on the received first beacon, of a first beacon period start time. The first beacon period start time may correspond to beacons transmitted by the second TRU. A second beacon period start time may be determined, based on the received first beacon, wherein the second beacon period start time corresponds to a beacon for transmission by the first TRU. A beacon signal may be transmitted in a second band, by the first TRU, wherein the beacon signal is timing aligned with beacon signals of the second TRU. The first band and the second band may be adjacent radio bands. 1. A method for multi-band operation by a first transmit/receive unit (TRU) , the method comprising:monitoring a plurality of frequency bands, wherein the plurality of frequency bands include at least a first band and a second band;receiving on the first band, by the first TRU from a second TRU, a first beacon;determining, based on the received first beacon, a first beacon period start time, wherein the first beacon period start time corresponds to beacons transmitted by the second TRU;determining, based on the received first beacon, a second beacon period start time, wherein the second beacon period start time corresponds to a beacon for transmission by the first TRU; andtransmitting in a second band, by the first TRU, a beacon signal, wherein the beacon signal is timing aligned with beacon signals of the second TRU;wherein the first band and the second band are adjacent radio bands.2. The method of claim 1 , wherein the first beacon period start time and second beacon period start time are aligned in time.3. The method of claim 1 , wherein the transmission of the beacon signal claim 1 , by the first TRU claim 1 , is an ...

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Номер записи: 59
16-06-2016 дата публикации

METHOD AND APPARATUS FOR SENDING AND RECEIVING CHANNEL QUALITY INDICATORS (CQIs)

Номер: US20160173261A1
Автор: Cave Christopher R., Di Girolamo Rocco, GRANDHI Sudheer A., Marinier Paul, Roy Vincent
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus for sending and receiving channel quality indicators (CQIs) is disclosed. A CQI may be periodically sent or received. A CQI may also be sent or received upon request by a network. 1. A wireless transmit/receive unit (WTRU) comprising:a processor configured to monitor for downlink control information on a downlink control channel;the processor configured to decode a transmission on the downlink control channel, the transmission being associated with an identifier of the WTRU;the processor configured to determine that a wireless network is requesting the WTRU to send a channel quality indicator (CQI) based on a triggering criteria associated with the transmission on the downlink control channel; andthe processor configured to send the CQI to the wireless network via a shared uplink channel.2. The WTRU of claim 1 , wherein the identifier is a radio network temporary identifier (RNTI).3. The WTRU of claim 1 , wherein the processor configured to periodically send CQIs via the shared uplink channel.4. The WTRU of claim 3 , wherein the processor is configured to identify periodic intervals for the CQIs that are sent periodically.5. The WTRU of claim 1 , wherein the processor is configured to send claim 1 , to the wireless network claim 1 , acknowledgements and negative acknowledgements via the shared uplink channel.6. The WTRU of claim 1 , wherein the downlink control channel is a shared channel.7. The WTRU of claim 1 , wherein the triggering criteria is one of a trigger or a poll.8. The WTRU of claim 1 , wherein the processor is configured to select the CQI based on a target block error rate (BLER).9. The WTRU of claim 1 , wherein the CQI is an index value.10. The WTRU of claim 1 , wherein the CQI is a relative value to a previously sent CQI.11. The WTRU of claim 1 , wherein the processor is configured to send the CQI at a physical layer.12. A method performed by a wireless transmit/receive unit (WTRU) claim 1 , the method comprising:monitoring for ...

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Номер записи: 60
23-06-2016 дата публикации

METHOD AND APPARATUS FOR VERSATILE MAC MULTIPLEXING IN EVOLVED HSPA

Номер: US20160183124A1
Автор: GRANDHI Sudheer A., Marinier Paul, Pani Diana, Terry Stephen E.
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

Methods and apparatus for versatile medium access control (MAC) multiplexing in evolved HSPA are disclosed. More particularly, methods for downlink optimization of the enhanced high speed MAC (MAC-ehs) entity and uplink optimization of the MAC-i/is entity are disclosed. Apparatuses for using the optimized downlink and uplink MAC entities are also disclosed. 1. A method for creating a medium access control (MAC) enhanced high speed (MAC-ehs) header for a MAC protocol data unit (PDU) , the method comprising: whether a first reordering SDU in the reordering PDU is a last segment of a MAC-ehs SDU, or', 'whether a last reordering SDU in the reordering PDU is a first segment of a MAC-ehs SDU., 'creating the MAC-ehs header for the MAC PDU, the MAC-ehs header comprising a segmentation indication (SI) field for a reordering PDU, the SI field indicating2. The method of claim 1 , wherein the SI field indicates that the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU claim 1 , and claim 1 , if there are more than one reordering SDUs in the reordering PDU claim 1 , the last reordering SDU of the reordering PDU is a complete MAC-ehs SDU.3. The method of claim 1 , wherein the SI field indicates that the last reordering SDU is the first segment of the MAC-ehs SDU claim 1 , and claim 1 , if there are more than one reordering SDUs in the reordering PDU claim 1 , the first reordering SDU of the reordering PDU is a complete MAC-ehs SDU.4. The method of claim 1 , wherein the SI field indicates that there is one reordering SDU in the reordering PDU that is a middle segment of a MAC-ehs SDU.5. The method of claim 1 , wherein the SI field indicates that claim 1 , if there are more than one reordering SDUs in the reordering PDU claim 1 , the first reordering SDU of the reordering PDU is the last segment of the MAC-ehs SDU and the last reordering SDU of the reordering PDU is the first segment of the MAC-ehs SDU.6. The method of claim 1 , wherein the ...

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Номер записи: 61
06-06-2019 дата публикации

METHOD AND APPARATUS FOR EFFICIENT ADDRESSING AND POWER SAVINGS IN WIRELESS COMMUNICATIONS

Номер: US20190174407A1
Автор: Chandra Arty, GRANDHI Sudheer A., Sammour Mohammed
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used for assigning groups of stations in wireless communications to one or more groups. Groups may be assigned by an access point (AP) based on information received from a station (STA). Group information may be signaled to each station and a group identifier may be indicated in a frame. The group information may be applied to a performance enhancement, for example power savings for the station, wherein the station enters a power saving mode on a condition that the station determines that it is not a member of the group. 1. A wireless station (STA) comprising:a receiver configured to receive, from an access point (AP), a management frame that includes an indication of a group to which the STA is assigned;the receiver configured to receive a frame from the AP, wherein the frame comprises a data packet and a group identifier;a processor configured to determine whether the group identifier received in the frame corresponds to the indication of a group to which the STA is assigned; andthe processor configured to enter a power saving mode on a condition that the group identifier received in the frame does not correspond to the indication of a group to which the STA is assigned.2. The STA of claim 1 , further comprising:a transmitter configured to transmit an indication of power save capabilities to the AP.3. The STA of claim 1 , further comprising:a transmitter configured to transmit power level information to the AP.4. The STA of claim 1 , further comprising:a transmitter configured to transmit a quality of service (QoS) requirement to the AP.5. The STA of claim 1 , wherein the group to which the STA is assigned is based on a load balancing algorithm of the AP.6. A method performed by a station (STA) claim 1 , the method comprising:receiving, from an access point (AP), a management frame that includes an indication of a group to which the STA is assigned;receiving a frame from the AP, wherein the frame comprises a data packet and a group ...

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Номер записи: 62
22-06-2017 дата публикации

METHOD AND APPARATUS FOR SUPPORTING MANAGEMENT ACTIONS FOR VERY HIGH THROUGHPUT IN WIRELESS COMMUNICATIONS

Номер: US20170181204A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus may be used to establish a communication link between devices such as VHT access points (AP)s or VHT wireless transmit/receive units (WTRU)s. For example, an AP or a WTRU may transmit management action request frames such as Association, Direct Link Setup (DLS) or Tunneled Direct Link Setup (TDLS) request frames. The management action frame may include VHT Capability information of the AP or the WTRU. In response to the management action request frame, the receiving AP or WTRU may transmit management action response frames to establish a communication link. Existing 802.11 management action frames may be used to include the VHT Capability information. The VHT Capability information may be used to implement various VHT features such as channel configurations or Beamforming. 1. A method for use in wireless communications , the method comprising:transmitting, to a station (STA), a communication link setup request frame that includes a Very High Throughput (VHT) Capability information field, wherein the VHT Capability information field indicates a channel width related to a multi-channel non-contiguous spectrum transmission; andreceiving, from the STA, a communication link setup response frame in response to the communication link setup request frame.2. The method of claim 1 , wherein the communication link setup request frame indicates a Direct Link Setup (DLS) or a Tunneled Direct Link Setup (TDLS) request frame.3. The method of claim 1 , wherein the communication link setup response frame indicates a Direct Link Setup (DLS) or a Tunneled Direct Link Setup (TDLS) response frame.4. The method of claim 1 , wherein the communication link setup request frame indicates an Association request frame that is transmitted to an Access Point (AP).5. The method of claim 4 , wherein the communication link setup response frame indicates an Association response frame that is received from the AP.6. The method of claim 1 , wherein the VHT Capability information ...

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Номер записи: 63
29-06-2017 дата публикации

Data rendering on local and remote displays

Номер: US20170185367A1
Автор: Ramakrishna Raju Vegesna, Sudheer A. Grandhi
Принадлежит: Zoho Corp Pvt Ltd

Described are an apparatus and method for interactively retrieving data from one or more data sources and rendering the data in a three dimensional (3D) format. The rendering may be displayed on a hand-held device, e.g., a smart phone or tablet computer, or on a remote display device such as another phone, tablet, screen, or a projector. The apparatus and method may operate in response to one or more inputs or orientation sensors, e.g., proximity, gravimeter, gyroscope, photo, and touch sensors.

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Номер записи: 64
04-06-2020 дата публикации

ACCESS POINT AND METHOD FOR INSTRUCTING LINK RESUMPTION OF A STATION IN A POWER SAVING MODE

Номер: US20200178324A1
Автор: GRANDHI Sudheer A., Targali Yousif, Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method performed by an AP may comprise initializing a CCC and increasing the CCC upon a change of at least one of a plurality of parameters of the AP. The plurality of parameters may include at least a high throughput (HT) Operation element, one or more Enhanced Distributed Channel Access (EDCA) parameters, or one or more operational mode parameters. The method may further comprise transmitting a frame, to at least one STA, wherein the frame includes an indication of the CCC, and the frame indicates that the at least one STA return from a power saving mode. 1. An access point (AP) comprising:circuitry configured to maintain a configuration change counter (CCC);circuitry configured to increase the CCC upon a change of a parameter of the AP; anda transmitter configured to transmit a frame, to at least one station (STA), wherein the frame includes an indication of the CCC and an indication that the at least one STA return from a power saving mode.2. The AP of claim 1 , wherein the frame includes a compressed service set identification (SSID) of 4 octets or less.3. The AP of claim 1 , wherein the transmitter is configured to transmit another frame comprising a 32 octet SSID to the at least one STA claim 1 , wherein the another frame is a beacon frame that includes more information than the frame.4. The AP of claim 1 , wherein the frame is transmitted to a plurality of stations (STAs).5. The AP of claim 1 , wherein the frame is integrity protected via at least one security key.6. The AP of claim 1 , wherein the frame is a broadcast frame.7. The AP of claim 1 , wherein the frame is a beacon frame.8. The AP of claim 1 , wherein the parameter is a high throughput (HT) Operation element.9. The AP of claim 1 , wherein the parameter is an Enhanced Distributed Channel Access (EDCA) parameter.10. The AP of claim 1 , wherein the parameter includes one or more operational mode parameters.11. The AP of claim 1 , wherein the parameter is a channel announcement parameter.12. An ...

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Номер записи: 65
15-07-2021 дата публикации

GROUP TRANSMISSIONS IN WIRELESS LOCAL AREA NETWORKS

Номер: US20210219165A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method performed by a STA may comprise receiving, from an access point, a RTS frame having a duration field and transmitting, to the AP, in response to receiving the RTS frame, a CTS frame. The method may further comprise receiving, from the AP, data of a MU data unit addressed to the STA and another STA and, in response, transmitting an ACK frame, to the AP. The data may be received by the STA on a subset of sub-carrier frequencies of which the MU data unit spans and the MU data unit and the ACK frame may be transmitted within a duration indicated by the duration field. 1. A station (STA) comprising:a receiver configured to receive, from an access point (AP), a request to send (RTS) frame having a duration field; anda transmitter configured to transmit, to the AP, in response to receiving the RTS frame, a clear to send (CTS) frame;wherein the receiver is further configured to receive, from the AP, data of a multi-user (MU) data unit addressed to the STA and another STA, wherein the data is received, by the STA, on a subset of sub-carrier frequencies of which the MU data unit spans;wherein the transmitter is further configured to transmit an acknowledgement (ACK) frame, to the AP, wherein the MU data unit and the ACK frame are transmitted within a duration indicated by the duration field.2. The STA of claim 1 , wherein the ACK frame is a block ACK frame type and the ACK frame is transmitted simultaneously with another ACK frame of the another STA.3. The STA of claim 1 , wherein the ACK frame is an ACK frame type.4. The STA of claim 1 , wherein the duration field is set in accordance with an ACK type and the ACK frame is transmitted according to the ACK type.5. The STA of claim 1 , wherein the ACK frame is an orthogonal frequency division multiple access (OFDMA) ACK frame.6. The STA of claim 1 , wherein the MU data unit comprises data intended for the another STA.7. The STA of claim 1 , wherein at least one of the RTS frame claim 1 , CTS frame claim 1 , MU data ...

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Номер записи: 66
02-10-2014 дата публикации

USER INTERFACES AND ASSOCIATED PROCESSES FOR INFORMATION RESOURCES

Номер: US20140298257A1
Автор: GRANDHI Sudheer A.
Принадлежит: COSMIC EAGLE, LLC

Methods and systems are disclosed for user interfaces and associated processes in computer applications and operating systems to provide an information resource area with information resources. In some embodiments, an information resource area is opened in response to detection of a user being idle for a predefined length of time with respect to an executing software program. In other embodiments an information resource area is opened in response to detection of a gesture by a user on the user interface displaying an executing software program. Various embodiments for rendering the information resource area and information resources are disclosed. Maintenance of the information resource area and the information resources may be based on user preferences. Embodiments for rendering the information resource area in conjunction with screen lock are also provided. In addition a multi-passcode security feature allowing device access at different levels of partial functionality is disclosed. 1. A method for rendering an information resource area , executed at least in part in a computer system with a user interface system supporting a touch screen display , the method comprising:receiving an indication of a detection of a user of the computer system being idle for a predefined length of time with respect to at least one computer software program executing in the computer system; andat least partly in response to receiving the indication, opening on the touch screen display supported by the user interface system the information resource area including at least one information resource.2. The method of claim 1 , wherein the at least one computer software program is a computer application.3. The method of claim 1 , wherein the at least one computer software program is an operating system shell.4. The method of claim 1 , wherein the at least one computer software program is a screen lock application.5. The method of claim 1 , wherein the detection of a user being idle for a ...

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Номер записи: 67
18-06-2020 дата публикации

METHOD AND APPARATUS FOR SUPPORTING MANAGEMENT ACTIONS FOR VERY HIGH THROUGHPUT IN WIRELESS COMMUNICATIONS

Номер: US20200196362A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus may be used to establish a communication link between devices such as VHT access points (APs) or VHT wireless transmit/receive units (WTRUs). For example, an AP or a WTRU may transmit management action request frames such as Association, Direct Link Setup (DLS) or Tunneled Direct Link Setup (TDLS) request frames. The management action frame may include VHT Capability information of the AP or the WTRU. In response to the management action request frame, the receiving AP or WTRU may transmit management action response frames to establish a communication link. Existing 802.11 management action frames may be used to include the VHT Capability information. The VHT Capability information may be used to implement various VHT features such as channel configurations or Beamforming. 1. A method for use in wireless communications , the method comprising:receiving a sounding packet at a station (STA) configured to support a Very High Throughput (VHT) transmission; andtransmitting, from the STA, an Action No Acknowledgement (ACK) frame that includes a VHT multiple input multiple output (MIMO) Control field and a VHT Compressed Beamforming Report field, wherein the VHT MIMO Control field indicates a channel width related to a multi-channel non-contiguous spectrum transmission, and wherein the VHT Compressed Beamforming Report field includes an average signal to noise ratio (SNR) for each of a number of space-time streams where the number of space-time streams are indicated in the VHT MIMO Control field as a number of columns in a matrix.2. The method of claim 1 , wherein the VHT MIMO Control field indicates a number of columns in the matrix and a number of rows in the matrix.3. The method of claim 1 , wherein the VHT MIMO Control field indicates a bandwidth configuration that includes a plurality of secondary channels for a VHT multi-channel transmission relative to a primary channel.4. The method of claim 1 , wherein the VHT Compressed Beamforming Report ...

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Номер записи: 68
06-08-2015 дата публикации

Method and apparatus for efficient addressing and power savings in wireless communications

Номер: US20150223163A1
Автор: Arty Chandra, Mohammed Sammour, Sudheer A. Grandhi
Принадлежит: InterDigital Technology Corp

A method and apparatus may be used for assigning groups of stations in wireless communications to one or more groups. Groups may be assigned by an access point (AP) based on information received from a station (STA). Group information may be signaled to each station and a group identifier may be indicated in a frame. The group information may be applied to a performance enhancement, for example power savings for the station, wherein the station enters a power saving mode on a condition that the station determines that it is not a member of the group.

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Номер записи: 69
05-08-2021 дата публикации

PHYSICAL BADGE DISTRIBUTION

Номер: US20210241560A1
Автор: GRANDHI Sudheer A., Palani Punithavathi, Pazhayannur Gopalakrishnan Sridhar, Rajendran Vijaykumar, Soundararajan Manikanda Vignesh, Venkatachalam Anjana
Принадлежит: Zoho Corporation Private Limited

An effective strategy should result in reduced resource consumption in association with an event. Reducing time at a bottleneck in event check-in would be considered a positive result. However, it is desirable to maintain privacy policy compliance. Utilizing the techniques described in this paper reduces time at check-in related to physical badge preparation and distribution while maintaining privacy policy compliance. The system and method can include pre-event activities, event-concurrent activities, and post-event activities related to accuracy, precision, aesthetics, coordination, and learning in association with badge preparation and distribution. 120-. (canceled)21. A method comprising:obtaining adjacent seating profile preference parameters for a first attendee;matching the adjacent seating profile preference parameters to a profile of a second attendee;making available to the second attendee an indication of interest by the first attendee in adjacent seating;obtaining an indication of consent by the second attendee to be seated adjacent to the first attendee;selecting available adjacent seats for the first attendee and the second attendee in accordance with the adjacent seating profile preference parameters;blocking the selected available adjacent seats for the first attendee and the second attendee, wherein the blocking of the selected available adjacent seats makes the seats unavailable to third attendees.22. The method of claim 21 , comprising prompting the first attendee to provide the adjacent seating profile preference parameters.23. The method of claim 21 , comprising facilitating selection of the second attendee by the first attendee when matching the adjacent seating profile preference parameters to the profile of the second attendee.24. The method of claim 21 , comprising generating an acceptance request for the second attendee claim 21 , wherein the acceptance request includes an indication of interest by the first attendee in adjacent seating.25. ...

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Номер записи: 70
13-08-2015 дата публикации

SENDING AND REDUCING UPLINK FEEDBACK SIGNALING FOR WIRELESS TRANSMISSION OF DATA

Номер: US20150230228A1
Автор: Cave Christopher R., Chandra Arty, GRANDHI Sudheer A., Lu Guang, Marinier Paul, Zhang Guodong
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A wireless transmit/receive unit includes at least one processor that receives a high speed physical downlink shared channel, and in response, transmits at least one random access channel preamble followed by ACK/NACK and channel quality indicator (CQI) information. The at least one random access channel preamble is selected from a set of random access preambles reserved for the ACK/NACK and CQI information. 1. A method implemented in a wireless transmit/receive unit (WTRU) , a method comprising:sending a preamble in a random access channel (RACH), the sent preamble indicating a request for an uplink shared channel allocation;receiving the uplink shared channel allocation; andsending a multimedia broadcast multicast service (MBMS) feedback transmission on shared uplink channel.2. The method as in claim 1 , wherein the preamble is derived from a Zadoff-Chu sequence.3. The method as in claim 1 , wherein the WTRU is in an LTE_Active state and uses a synchronized RACH preamble to send the request.4. The method as in claim 1 , wherein the WTRU is in an LTE_Active state or an LTE_Idle state and uses a non-synchronized RACH preamble to send the request.5. The method as in claim 1 , further comprising the WTRU sending a message with an indication that a cause for random access to the RACH is feedback for MBMS.6. A method implemented in a wireless transmit/receive unit (WTRU) claim 1 , comprising:sending a preamble in a random access channel (RACH), the sent preamble indicating that a cause for random access to the RACH is feedback for MBMS; andsending a multimedia broadcast multicast service (MBMS) feedback transmission on the RACH.7. The method of claim 6 , wherein the preamble is derived from a Zadoff-Chu sequence.8. The method as in claim 6 , wherein the RACH used by the WTRU is a synchronized RACH.9. The method as in claim 6 , wherein the RACH used by the WTRU is a non-synchronized RACH.10. The method as in claim 6 , wherein the MBMS feedback transmission is sent within ...

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Номер записи: 71
04-08-2016 дата публикации

METHOD AND APPARATUS OF ENABLING MULTI BAND TRANSMISSION

Номер: US20160227497A1
Автор: GRANDHI Sudheer A., LIVET Catherine M., Sammour Mohammed, ZUNIGA Juan Carlos
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus for enabling multi-band transmission includes receiving a beacon on a first radio band and receiving the beacon on a second radio band. The beacon includes synchronization information for transmission on the first and second radio bands. 1. A method implemented in a first wireless transmit/receive unit (WTRU) for multi-band communication with a second WTRU , the method comprising:receiving, from the second WTRU, a first beacon frame by a first receiver on a first radio band, wherein the first beacon frame includes an indication that the second WTRU is capable of transmitting on more than one radio band, and wherein the first beacon frame includes synchronization information that enables the first WTRU to locate a second beacon frame on a second radio band; andreceiving, from the second WTRU, the second beacon frame by a second receiver on the second radio band in accordance with the synchronization information included in the first beacon frame.2. The method of claim 1 , wherein the synchronization information is included in a beacon period (BP) switch information element (IE).3. The method of claim 1 , wherein at least one of the first and second beacon frames includes an expanded bandwidth transmission (EBT) BP switch IE claim 1 , wherein the EBT BP switch IE includes a field indicating a new beacon timing value and a time to change to a new BP.4. The method of claim 1 , wherein the first and second beacon frames are received simultaneously on the first and second radio bands.5. The method of claim 1 , wherein the first and second beacon frames are received sequentially on the first and second radio bands.6. The method of claim 1 , wherein at least one of the first and second beacon frames includes EBT capabilities of the second WTRU.7. The method of claim 6 , wherein the EBT capabilities include any one of the following: a default channel and a default expanded channel.8. A first wireless transmit/receive unit (WTRU) in communication with a ...

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Номер записи: 72
12-08-2021 дата публикации

MESSAGING APPLICATION SUPPORTING PRESENTATION SERVICE

Номер: US20210248302A1
Автор: Behiel Arthur J., GRANDHI Sudheer A., Vembu Sridhar
Принадлежит: Zoho Corporation Private Limited

A messaging system supports a presentation session with participants of the presentation, a presenter and one or more audience members. The message system allows the participants to share messages and documents via respective client/mobile devices. An application on each mobile device allows the audience member to peruse and comment on document portions (e.g., pages, images, or slides) being presented. The presentation sequence for the document portions can be managed by the presenter, or document perusal can be decoupled from the presentation sequence to allow audience members to focus on past or future document portions. Comments of the audience member or other participants can be linked to corresponding document portions. A user may repeat, reprise or continue a past presentation. 1. A method for facilitating , via a messaging application , a display of messages relating to a presentation of a document via a graphical user interface of a device associated with a participant , the method comprising:receiving a selection of a presentation, the presentation having a plurality of display portions that were linked to a plurality of comment messages during a previous presentation session;rendering, responsive to the selection, a presentation view on the graphical user interface, the presentation view including a presentation window and a comments window;updating the presentation window to display a first display portion of the display portions;displaying in the comments window, responsive to the updating, a first comment message linked to the first display portion;updating the presentation window again to display a second display portion of the display portions;displaying in the comments window, responsive to the re-updating, a second comment message linked to the second display portion;receiving, on the graphical user interface, a selection of the first comment message; andresponsive to the selecting, displaying the first display portion in the presentation window.2. ...

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Номер записи: 73
11-07-2019 дата публикации

RANGE EXTENSION IN WIRELESS LOCAL AREA NETWORKS

Номер: US20190215054A1
Автор: GRANDHI Sudheer A., Lou Hanqing, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method for receiving data, by an end-STA from a root AP, may comprise receiving, from a relay AP, a first beacon frame comprising a relay information element. The relay information element may include a field which indicates whether a root AP BSSID field indicating a BSSID of the root AP is included in the beacon frame. The end-STA may transmit an association request to the relay AP and may receive an association response from the relay AP if the relay AP is allowed by the root AP to associate with the end-STA. The end-STA may receive, from the relay AP, traffic indication map (TIM) indications, of which at least one of the TIM indications may be for the end-STA. The one of the TIM indications may indicate that the data is available for the end-STA. The end-STA may then receive the data from the relay AP. 1. A method for receiving data , by an end-station (end-STA) , from a root access point (AP) , the method comprising:receiving, from a relay AP, a first beacon frame comprising a relay information element, wherein the relay information element includes a field that indicates whether a root AP basic service set identification (BSSID) field indicating a BSSID of the root AP is included in the first beacon frame;transmitting an association request to the relay AP;receiving an association response from the relay AP on a condition the relay AP is allowed by the root AP to associate with the end-STA;receiving, from the relay AP, traffic indication map (TIM) indications, wherein at least one of the TIM indications is for the end-STA and indicates that the data is available for the end-STA; andreceiving the data from the relay AP.2. The method of claim 1 , wherein the association response includes an association identifier.3. The method of claim 2 , wherein the one of the TIM indications for the end-STA is based on the association identifier.4. The method of claim 1 , further comprising:transmitting data, to the root AP, via the relay AP.5. The method of claim 1 , ...

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Номер записи: 74
11-07-2019 дата публикации

METHOD AND SYSTEM FOR BEACON INFORMATION PROVISIONING, TRANSMISSIONS AND PROTOCOL ENHANCEMENTS

Номер: US20190215764A1
Автор: Ghosh Monisha, GRANDHI Sudheer A., Lou Hanqing, Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method for beacon information provisioning, transmissions and protocol enhancements includes defining multiple level beacons based on the attributes of beacon information fields/elements. A short beacon may be used in addition to a primary beacon in space-time block code (STBC) modes, non-STBC modes and in multiple bandwidth modes. The short beacons may also be used for Fast Initial Link Setup (FILS) and to extend system coverage range. Beacon transmissions may use adaptive modulation and coding set/scheme (MCS). 1. A method implemented by wireless transmit and receive unit (WTRU) , the method comprising:receiving a short service set identifier (SSID) in a fast initial link setup (FILS) discovery frame;comparing an identified SSID and the received short SSID;invoking a MAC sublayer management entity (MLME) MLME-SCAN.confirm primitive on a condition that the compared SSID and short SSID match, and a report option is set to immediate;reporting the MLME-SCAN.confirm primitive; andperforming a FILS linking procedure based on the reported MLME-SCAN.confirm primative.2. The method of claim 1 , wherein the FILS discovery frame comprises a version number information field.3. The method of claim 1 , wherein the FILS discovery frame comprises at least one of a Common Advertisement Group (CAG) number or an AP Configuration Sequence Number (AP-CSN).4. The method of claim 1 , the FILS discovery frame comprises a traffic information map (TIM).5. The method of claim 1 , wherein the FILS discovery frame includes a field of access network type.6. The method of claim 5 , comparing the access network type received in the FILS discovery frame with a wildcard access network type claim 5 , and comparing the access network type received in the FILS discovery frame with the wildcard access network type to confirm a match.7. The method of claim 1 , the method further comprising determining that sufficient network service information was obtained.8. The method of claim 7 , the method ...

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Номер записи: 75
09-08-2018 дата публикации

POWER SAVING METHOD AND APPARATUS

Номер: US20180227968A1
Автор: GRANDHI Sudheer A., Targali Yousif, Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A power saving method performed by a STA may comprise receiving, from an AP, a first beacon comprising a CCC value. The CCC value may be an integer value that represents a configuration instance of the AP. The STA may return from a power saving mode upon receiving the first beacon and receive a second beacon from the AP. The second beacon may be a primary beacon of the AP. The first beacon may comprise an SSID of the AP. The STA may perform an association procedure with the AP upon receiving the first beacon. 1. A method performed by a station (STA) , the method comprising:receiving, from an access point (AP), a first beacon comprising a configuration change count (CCC) value, wherein the CCC value represents a configuration instance of the AP;returning from a power saving mode upon receiving the first beacon; andreceiving, from the AP, a second beacon, wherein the second beacon is a primary beacon of the AP.2. The method of claim 1 , wherein the first beacon further comprises a service set identification (SSID) of the AP.3. The method of claim 1 , further comprising:performing an association procedure with the AP upon receiving the first beacon.4. The method of claim 1 , wherein the CCC value is a value which is incremented by one and wraps around once a maximum value is reached.5. The method of claim 1 , wherein the second beacon does not comprise the CCC value.6. The method of claim 1 , wherein the first beacon further comprises link resumption information to aid in returning from the power saving mode.7. The method of claim 1 , wherein the first beacon is shorter than the primary beacon.8. A station (STA) comprising:a receiver configured to receive, from an access point (AP), a first beacon comprising a configuration change count (CCC) value, wherein the CCC value represents a configuration instance of the AP;circuitry configured to cause the STA to return from a power saving mode upon receipt of the first beacon; andcircuitry configured to process a second ...

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Номер записи: 76
10-08-2017 дата публикации

FAST UPLINK RESPONSE TO DOWNLINK SHARED CHANNEL TRANSMISSION WITHOUT A DEDICATED UPLINK CHANNEL

Номер: US20170230999A1
Автор: Cave Christopher R., Di Girolamo Rocco, GRANDHI Sudheer A., Marinier Paul, Reznik Alexander, Zeira Eldad M.
Принадлежит:

A method and apparatus for uplink transmission over a non-contentious shared feedback channel are disclosed, wherein the parameters of the uplink transmission are determined by the parameters of a downlink transmission. A new uplink channel, called a physical shared uplink feedback channel (PSUFCH) is used for uplink transmission such as feedback information in response to a downlink transmission on a fast shared data channel. The content of the feedback information may be general, e.g. an ACK/NACK or a channel quality indicator (CQI). The PSUFCH is transmitted using power ramping that terminates upon reception of a downlink ACK (DLACK) from a Node-B. No ambiguity resolution is required due to the non-contentious and deterministic mapping of the uplink channel resources. 1. A wireless transmit/receive unit (WTRU) comprising:a processor configured to, for one or more transition time intervals, generate a signal using one of: (1) acknowledgment/negative acknowledgment (ACK/NACK) information with the channel quality information (CQI) or (2) the ACK/NACK information without the CQI; anda transmitter configured to transmit the generated signal, to a network entity, (1) on physical uplink channel resources which carry data on condition that the ACK/NACK information with the CQI is generated and data is being sent, and (2) on the physical uplink channel resources which do not carry data on condition that the ACK/NACK information without the CQI is generated and no data is being sent.2. The WTRU of claim 1 , wherein a physical uplink channel that includes the physical uplink channel resources is shared by a plurality of WTRUs.3. The WTRU of claim 1 , wherein the transmitter is further configured to transmit a request for uplink bandwidth on a physical uplink channel that includes the physical uplink channel resources.4. The WTRU of claim 1 , wherein transmissions on a physical uplink channel that includes the physical uplink channel resources have a varying number of bits.5 ...

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Номер записи: 77
06-11-2014 дата публикации

METHODS AND SYSTEMS FOR PROVIDNG RELIABLE MULTICAST SERVICE IN A WILAN SYSTEM

Номер: US20140328237A1
Автор: GRANDHI Sudheer A., Sammour Mohammed
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used for acknowledged multicast operation in a wireless network having a base station and at least one wireless station (STA). The base station may be configured to transmit a first multicast signal during a first interval. The at least one STA may receive the first multicast signal during the first interval, and the at least one STA may transmit an acknowledgement (ACK) signal to the base station. On a condition that the STA does not receive the first multicast signal during the first interval, the STA may transmit a negative ACK (NACK) signal to the base station. 1. A station (STA) comprising:a transmitter configured to transmit a message that includes an indication of a level of support for multicast capabilities; anda receiver configured to receive a multicast signal and a multicast block acknowledgement request (MCBAR) at an interval, wherein the MCBAR indicates which of a plurality of STAs is requested to transmit an acknowledgement (ACK);the transmitter further configured to transmit, on a condition that the multicast signal is correctly received by the STA, an ACK, and on a condition that the multicast signal is not correctly received by the STA, a negative ACK (NACK); andthe receiver further configured to receive a retransmitted portion of the multicast signal on a condition that the STA transmits a NACK.2. The STA of claim 1 , wherein the receiver is configured to receive claim 1 , in the MCBAR claim 1 , information on a sequence number of a broadcast frame.3. The STA of claim 1 , wherein the receiver is configured to receive claim 1 , in the MCBAR claim 1 , information on a number of broadcast frames that will be transmitted.4. The STA of claim 1 , wherein the transmitter is configured to transmit an ACK that is a bitmap representative of a frame status.5. The STA of claim 1 , wherein the transmitter is configured to transmit the ACK in a shared interval.6. The STA of claim 1 , wherein the receiver is configured to receive ...

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Номер записи: 78
17-08-2017 дата публикации

METHOD AND APPARATUS FOR TRANSMISSION MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM

Номер: US20170238254A1
Автор: GRANDHI Sudheer A., Olesen Robert L., Sammour Mohammed
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used in wireless communications. The apparatus may he an access point (AP), and may transmit a power save frame. The power save frame may include one or more Uplink (UL) Transmission Times (ULT)s. The apparatus may determine that a station (STA) did not transmit during its respective ULT. The AP may transmit another power save frame. The other power save frame may include a modified ULT. The modified ULT may be for a STA that did not transmit during its respective ULT. The other power save frame may include an unmodified ULT. The unmodified ULT may be for a STA that did not transmit. 1. An access point (AP) comprising:a receiver;a transmitter configured to transmit, to a plurality of stations (STA)s, a first power save frame that includes a plurality of Uplink (UL) Transmission Times (ULT)s; anda processor in communication with the receiver and the transmitter, the processor configured to determine that one of the plurality of STAs did not transmit during its respective ULT,wherein the transmitter is further configured to transmit a second power save frame that includes a modified ULT for the STA that did not transmit during its respective ULT and an unmodified ULT for a STA with a ULT scheduled after the STA that did not transmit.2. The AP of wherein the receiver is further configured to receive a request to transmit a power save frame that includes scheduled ULT information.3. The AP of wherein the processor is further configured to monitor a wireless medium for idle periods that exceed a pre-defined threshold.4. The AP of wherein the transmitter is further configured to transmit downlink data on a condition that the processor detects an idle period that exceeds the pre-defined threshold.5. The AP of claim 1 , wherein the first power save frame is a Multiple Receiver Aggregate Multi-Poll/Power Save Aggregation Descriptor (MMP/PSAD) frame.6. The AP of claim 1 , wherein the second power save frame is a Multiple Receiver Aggregate Multi- ...

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Номер записи: 79
23-08-2018 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING ACKNOWLEDGEMENTS IN RESPONSE TO RECEIVED FRAMES

Номер: US20180241531A1
Автор: Ghosh Monisha, GRANDHI Sudheer A., Lou Hanqing, Wang Xiaofei
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus for operation by an access point (AP) is provided. The method may comprise receiving a first frame from a first STA, the first frame including first data and receiving a second frame from a second STA, the second frame including second data. In response to the receiving, an acknowledgement (ACK) frame may be transmitted to the first STA and to the second STA. The ACK frame may be addressed to a broadcast address and include a field which indicates whether the ACK frame is a multiple traffic identifier (multi-TID) block ACK frame format or another ACK frame format. 1. A station (STA) comprising:memory configured to store an association identifier (AID);a transmitter configured to transmit a data frame to an access point (AP), the data frame having a traffic identifier (TID) associated with a priority of the data frame;a receiver configured to receive a block acknowledgement (block-ACK) frame, from the AP, wherein the block-ACK frame is addressed to a broadcast address;a processor configured to process the block-ACK frame to determine whether the stored AID matches AID bits included in the block-ACK frame; andthe processor is further configured to, on a condition the stored AID does match the AID bits included in the block-ACK frame, determine whether the data frame was correctly received by the AP.2. The STA of claim 1 , wherein the determination of whether the data frame was correctly received by the AP is based on the TID.3. The STA of claim 1 , wherein the determination of whether the data frame was correctly received by the AP is based on a starting sequence number included in the block-ACK frame.4. The STA of claim 1 , wherein the determination of whether the data frame was correctly received by the AP is based on a bitmap included in the block-ACK frame.5. The STA of claim 1 , wherein the block-ACK frame includes AID bits corresponding to an AID of another STA claim 1 , a TID corresponding to other data claim 1 , another starting sequence ...

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Номер записи: 80
10-09-2015 дата публикации

METHOD AND APPARATUS FOR SUPPORTING MANAGEMENT ACTIONS FOR VERY HIGH THROUGHPUT IN WIRELESS COMMUNICATIONS

Номер: US20150256245A1
Автор: GRANDHI Sudheer A.
Принадлежит: InterDigital Patent Holdings, Inc..

A method and apparatus may be used in Very High Throughput (VHT) Wireless Local Area Network (WLAN) management actions. Management action frames such as VHT Action frames may be used to implement VHT features in WLANs. Extensions to 802.11 Action frames may be used to support VHT features and provide backward compatibility. VHT Management Actions may be supported with VHT Action frames and VHT extensions to 802.11 Action frames in various categories such as Direct Link Setup (DLS), Public, Spectrum Management and high throughput (HT). An access point (AP) or a wireless transmit/receive unit (WTRU) may indicate VHT capability by way of signaling. 1. A method for use in wireless communications , the method comprising:receiving a sounding packet at a station (STA); andtransmitting, from the STA, an Action No Acknowledgement (ACK) frame that includes a Very High Throughput (VHT) multiple input multiple output (MIMO) Control field and a VHT Compressed Beamforming Report field, wherein the VHT MIMO Control field indicates a channel width related to a multi-channel non-contiguous spectrum transmission associated with the sounding packet, and wherein the VHT Compressed Beamforming Report field includes information based on a value indicated in the VHT MIMO Control field.2. The method of claim 1 , wherein the VHT MIMO Control field indicates a number of columns in a Compressed Beamforming Report matrix and a number of rows in a Compressed Beamforming Report matrix.3. The method of claim 1 , wherein the VHT MIMO Control field indicates a bandwidth configuration that includes a plurality of secondary channels for a VHT multi-channel transmission relative to a primary channel.4. The method of claim 1 , wherein the VHT Compressed Beamforming Report field includes a plurality of orthogonal frequency division multiplex (OFDM) sub-carriers claim 1 , wherein the OFDM sub-carriers are grouped in a set.5. The method of claim 1 , wherein a compressed beamforming matrix code book ...

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Номер записи: 81
01-08-2019 дата публикации

ACCESS NETWORK QUERY PROTOCOL METHOD AND APPARATUS

Номер: US20190239261A1
Автор: GRANDHI Sudheer A., Targali Yousif, Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method performed by a STA may comprise transmitting a first ANQP message to an AP and receiving a second ANQP message in response. The second ANQP message may comprise a CCC value representing a configuration instance of the AP which is incremented by one upon a configuration change. The CCC value may wrap around once a maximum value is reached. The first ANQP message may comprise the CCC value or may comprise another CCC value which is different than the CCC value. 1. A method performed by a station (STA) , the method comprising:transmitting, by the STA to an access point (AP), a first access network query protocol (ANQP) message; andreceiving, in response to transmitting the first ANQP message, a second ANQP message comprising a configuration change count (CCC) value, wherein the CCC value represents a configuration instance of the AP and the CCC value represents a value which is incremented by one upon a configuration change of the AP and wraps around once a maximum value is reached.2. The method of claim 1 , wherein the first ANQP message comprises the CCC value.3. The method of claim 1 , wherein the first ANQP comprises another CCC value which is different than the CCC value.4. The method of claim 1 , wherein the first ANQP message is transmitted to a plurality of APs.5. The method of claim 1 , wherein the second ANQP message comprises configuration information including ANQP attributes.6. The method of claim 5 , wherein the ANQP attributes correspond to the CCC value.7. The method of claim 6 , further comprising:storing the ANQP attributes and the CCC value.8. The method of claim 7 , further comprising:receiving a beacon frame comprising another CCC value;determining whether the another CCC value matches the stored CCC value; andtransmitting a third ANQP message to the AP in response to the determining;wherein the another CCC value does not match the stored CCC value.9. A method performed by a station (STA) claim 7 , the method comprising:receiving, from an ...

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Номер записи: 82
15-09-2016 дата публикации

METHODS AND APPARATUS FOR ENHANCING ELECTRONIC PRESENTATIONS

Номер: US20160266864A1
Автор: Dandapani Rajendran, GRANDHI Sudheer A., Jambulingam Karthikeyan, Rajendran Vijaykumar, Vembu Sridhar
Принадлежит:

A system and method for communicating a multimedia presentation between a presenter and an audience is described. Services provided via a network facilitate the communication, and include real-time determination of remaining portions of a presentation responsive to “on the fly” presentation modifications, automated filtering and prioritization of audience feedback to a presenter, and integration with one or more customer data resources. 1. A computer-implemented method of facilitating communication between a presenter of a multimedia presentation and audience members of the presentation , the computer-implemented method comprising:providing a presentation interface including flow control commands, for the multimedia presentation to a presentation device via a network;providing a presenter interface including flow control commands for the multimedia presentation to a wireless handheld presenter device via the network;sending a portion of the multimedia presentation to the presentation device via the network;synchronizing the presentation interface and the presenter interface;receiving a command from the wireless handheld presenter device via the presenter interface; andresponsive to the command, updating the portion of the multimedia presentation on the presentation device.2. The computer-implemented method of claim 1 , further comprising estimating and sending to the wireless handheld presenter device claim 1 , a multimedia presentation duration and a portion duration corresponding to the portion of the multimedia presentation.3. The computer-implemented method of claim 2 , wherein the estimating includes retrieving and considering historical data.4. The computer-implemented method of claim 2 , wherein the estimating includes retrieving and considering customer data.5. The computer-implemented method of claim 2 , wherein the estimating and sending to the wireless handheld presenter device claim 2 , the multimedia presentation duration and the portion duration ...

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Номер записи: 83
24-09-2015 дата публикации

METHOD AND APPARATUS FOR PROVIDING VERY HIGH THROUGHPUT OPERATION AND CAPABILITY SIGNALING FOR WIRELESS COMMUNICATIONS

Номер: US20150271732A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus are disclosed for enabling very high throughput (VHT) communications. A wireless transmit and receive unit (WTRU) may receive, from an access point (AP), a management frame comprising VHT capabilities information. The VHT capabilities information may comprise an indication of support for reception via non-contiguous channels. The WTRU may transmit, on a condition that reception via non-contiguous channels is supported, at least one data packet, to the AP, via multiple non-contiguous channels. The multiple non-contiguous channels may be used simultaneously. 1. A wireless transmit and receive unit (WTRU) comprising:a receiver configured to receive a management frame comprising very high throughput (VHT) capabilities information from an access point (AP), wherein the VHT capabilities information comprises an indication of support for reception via non-contiguous channels; anda transmitter configured to transmit at least one data packet to the AP via multiple non-contiguous channels on a condition that reception via non-contiguous channels is supported, wherein one of the multiple non-contiguous channels is a primary channel.2. The WTRU of claim 1 , wherein the VHT capabilities information comprises power control information.3. The WTRU of claim 1 , wherein the VHT capabilities information comprises frequency reuse capabilities.4. The WTRU of claim 1 , wherein the non-contiguous channels are used simultaneously.5. The WTRU of wherein each of the non-contiguous channels is formed from a group of contiguous channels.6. A method of communicating very high throughput (VHT) capability information from a wireless transmit/receive unit (WTRU) comprising:receiving a management frame comprising VHT capabilities information from an access point (AP), wherein the VHT capabilities information comprises an indication of support for reception via non-contiguous channels; andtransmitting at least one data packet to the AP via multiple non-contiguous channels on ...

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Номер записи: 84
06-08-2020 дата публикации

Supporting a large number of devices in wireless communications

Номер: US20200252825A1
Автор: Guodong Zhang, Lei Wang, Sudheer A. Grandhi, Xiaofei Wang
Принадлежит: InterDigital Patent Holdings Inc

A method for receiving a backoff value at a wireless station is presented. A traffic indication map is received at the station, wherein a backoff number is implicitly assigned to the station based on a position of the station within the traffic indication map. The backoff value is determined by multiplying the backoff number by a predetermined time value.

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Номер записи: 85
06-08-2020 дата публикации

METHOD AND APPARATUS FOR TRANSMISSION MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM

Номер: US20200252870A1
Автор: GRANDHI Sudheer A., Olesen Robert L., Sammour Mohammed
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used in wireless communications. The apparatus may be an access point (AP), and may transmit a power save frame. The power save frame may include one or more Uplink (UL) Transmission Times (ULT)s. The apparatus may determine that a station (STA) did not transmit during its respective ULT. The AP may transmit another power save frame. The other power save frame may include a modified ULT. The modified ULT may be for a STA that did not transmit during its respective ULT. The other power save frame may include an unmodified ULT. The unmodified ULT may be for a STA that did not transmit. 1. An IEEE 802.11 station (STA) comprising:a transceiver configured to receive, from an access point (AP), a first frame that includes an indication of a first uplink transmission time (ULT) associated with the STA during which the STA is assigned to transmit uplink data to the AP;a processor, coupled to the transceiver, configured to receive a second frame during the first ULT that includes an indication of a modified ULT associated with the STA during which the STA is assigned to transmit uplink data to the AP; andthe processor and the transceiver configured to transmit uplink data to the AP during the modified ULT associated to the STA.2. The STA of claim 1 , wherein the first frame is a power save frame.3. The STA of claim 1 , wherein the first frame includes a second uplink transmission time (ULT) associated with a second STA during which the second STA is assigned to transmit uplink data to the AP.4. The STA of claim 3 , wherein the second frame includes the second ULT associated with the second STA.5. The STA of claim 4 , wherein the second ULT received in the second frame is unchanged as compared to the second ULT received in the first frame.6. The STA of claim 1 , wherein the processor and the transceiver are configured to receive the second frame after a point control function inter-frame spacing (PIFS) period after the start of the first ULT.7. ...

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Номер записи: 86
21-09-2017 дата публикации

Method and apparatus for efficient addressing and power savings in wireless communications

Номер: US20170273021A1
Автор: Arty Chandra, Mohammed Sammour, Sudheer A. Grandhi
Принадлежит: InterDigital Technology Corp

A method and apparatus may be used for assigning groups of stations in wireless communications to one or more groups. Groups may be assigned by an access point (AP) based on information received from a station (STA). Group information may be signaled to each station and a group identifier may be indicated in a frame. The group information may be applied to a performance enhancement, for example power savings for the station, wherein the station enters a power saving mode on a condition that the station determines that it is not a member of the group.

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Номер записи: 87
18-12-2014 дата публикации

METHOD AND SYSTEM FOR IMPROVING RESPONSIVENESS IN EXCHANGING FRAMES IN A WIRELESS LOCAL AREA NETWORK

Номер: US20140369338A1
Автор: Chandra Arty, GRANDHI Sudheer A., Sammour Mohammed, Zeira Eldad M.
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and system for improving responsiveness in exchanging management and control frames in a wireless local area network are disclosed. An initiator sends a frame (action frame, management frame, CSI frame, control frame, or data frame) to a responder. Upon correctly receiving the frame, the responder sends a response frame to the initiator instead of directly sending an acknowledgement (ACK) packet. The responder preferably accesses the wireless medium to send the response frame in a short inter-frame spacing (SIFS). With this scheme, a long delay associated with having to contend for the wireless medium to send the response frame is avoided and therefore, the responsiveness and timeliness of the feedback mechanism is significantly enhanced. The response frame may be piggybacked on or aggregated with another packet. 1. A method for use in a first station (STA) , the method comprising:transmitting, by the first STA, to a second STA, a channel state information (CSI) frame, wherein the CSI frame is an action no acknowledgement (No-ACK) frame; andreceiving, by the first STA, from the second STA, a response frame that includes CSI feedback without receiving a separate acknowledgement (ACK) frame acknowledging receipt of the CSI frame.2. The method of wherein the response frame is received within a short inter-frame spacing (SIFS) of the CSI frame.3. The method of wherein the response frame is piggybacked on another frame or aggregated with another frame.4. The method of wherein the CSI frame includes a request identity number field to indicate a request identity number.5. The method of wherein the CSI frame includes a response time policy field to indicate whether the response frame is to be received immediately or within a predetermined time period.6. The method of wherein the CSI frame includes an aggregation policy field to indicate whether the response frame may be aggregated with at least one other frame.7. The method of wherein the aggregation policy field ...

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Номер записи: 88
05-10-2017 дата публикации

METHODS AND SYSTEMS FOR GROUPING AND PRIORITIZATION OF CUSTOMERS FOR LIVE SUPPORT

Номер: US20170287039A1
Автор: Devageorge Jeri John Prabhu, GRANDHI Sudheer A., Vembu Manikandan
Принадлежит:

A networked communication system allows a vendor that maintains a website to prioritize, select, and establish human-assisted interaction with customers interacting with the website or navigating a brick-and-mortar store. The system maintains databases populated with customer-specific data, including experiential information that reflects past and current customer activity. The vendor's human help agents are provided with intuitive interfaces that rank customers using agent-specific ranking rules applied to user data and experiential information. The databases are updated responsive to user activity. Agents can manage ranking rules to optimize their performance in responding to customers and thus improve customer experience. 1. A method for prioritizing customers to qualify for support , the method comprising:maintaining a user database listing at least a subset of the customers;obtaining experiential information about the customers;ranking the customers responsive to the experiential information, the ranking collecting the customers in priority groups;rendering a first view of the ranking, the first view depicting the priority of the customers along multiple spatial dimensions;receiving a trigger indicative of activity of one of the customers; andupdating the user database responsive to the trigger.2. The method of claim 1 , further comprising updating the ranking of the one of the customers and rendering a second view of the updated ranking responsive to the trigger claim 1 , the second view depicting the updated ranking with the one of the customers moved between ones of the priority groups.3. The method of claim 1 , the rendering of the first view comprising depicting visual representations of the priority groups as separated from a reference location by a respective distance.4. The method of claim 3 , the rendering of the first view comprising depicting visual representations of the customers in a given one of the priority groups at different angles with ...

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Номер записи: 89
06-10-2016 дата публикации

METHOD AND APPARATUS FOR SUPPORTING WIDEBAND AND MULTIPLE BANDWIDTH TRANSMISSION PROTOCOLS

Номер: US20160295610A1
Автор: Anepu Bhaskar M., GRANDHI Sudheer A., Wang Xiaofei
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, a wireless transmit/receive unit (WTRU) may obtain a TXOP for a 2 MHz bandwidth mode frame transmission with another device capable of operating in a 2 MHz bandwidth mode and a 1 MHz bandwidth mode. The WTRU may conduct a request-to-send (RTS)/clear-to-send (CTS) frame exchange in the second bandwidth mode, and truncate the TXOP by transmitting a contention free (CF)-End frame in the first and second bandwidth modes. In another scenario, an AP may obtain a TXOP for a 2 MHz bandwidth mode frame transmission with a WTRU capable of both 2 MHz and 1 MHz bandwidth modes. 1. A method for use in a first wireless transmit/receive unit (WTRU) , the method comprising:generating a contention free (CF)-End frame that includes a duration field and a basic service set identifier (BSSID) field indicating a medium access control (MAC) address associated with an access point (AP), wherein the BSSID field includes an individual/group bit;on a condition that a transmit opportunity (TXOP) is being truncated, setting the individual/group bit of the BSSID field to a value of one (1), and setting a scrambling sequence associated with the CF-End frame to indicate a bandwidth associated with the TXOP being truncated by the first WTRU; andtransmitting the CF-End frame to enable a second WTRU receiving the CF-End frame to set a network allocation vector (NAV) associated with the indicated bandwidth.2. The method of claim 1 , wherein the TXOP being truncated by the first WTRU is a wideband TXOP.3. The method of claim 2 , wherein the wideband TXOP is an 80 MHz transmission.4. The method of claim 2 , wherein the wideband TXOP is a 160 MHz transmission.5. The method of claim 4 , wherein the 160 MHz ...

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Номер записи: 90
27-08-2020 дата публикации

Method and apparatus for providing very high throughput operation and capability signaling for wireless communications

Номер: US20200275341A1
Автор: Sudheer A. Grandhi
Принадлежит: InterDigital Patent Holdings Inc

A method and apparatus are disclosed for enabling communications in a wireless local area network (WLAN). A wireless transmit and receive unit (WTRU) may receive, from an access point (AP), a management frame comprising capability information. The capability information may comprise an indication of support for reception via non-contiguous channels. The WTRU may transmit, on a condition that reception via non-contiguous channels is supported, at least one data packet, to the AP, via multiple non-contiguous channels. The multiple non-contiguous channels may be used simultaneously.

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Номер записи: 91
13-10-2016 дата публикации

METHOD AND APPARATUS FOR SUPPORTING MANAGEMENT ACTIONS FOR VERY HIGH THROUGHPUT IN WIRELESS COMMUNICATIONS

Номер: US20160301459A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus may be used in Very High Throughput (VHT) Wireless Local Area Network (WLAN) management actions. Management action frames such as VHT Action frames may be used to implement VHT features in WLANs. Extensions to 802.11 Action frames may be used to support VHT features and provide backward compatibility. VHT Management Actions may be supported with VHT Action frames and VHT extensions to 802.11 Action frames in various categories such as Direct Link Setup (DLS), Public, Spectrum Management and high throughput (HT). An access point (AP) or a wireless transmit/receive unit (WTRU) may indicate VHT capability by way of signaling. 1. A method for use in wireless communications , the method comprising:transmitting a sounding packet to a station (STA); andreceiving, from the STA, an Action No Acknowledgement (ACK) frame that includes a Very High Throughput (VHT) multiple input multiple output (MIMO) Control field and a VHT Compressed Beamforming Report field, wherein the VHT MIMO Control field indicates a channel width related to a multi-channel non-contiguous spectrum transmission associated with the sounding packet, and wherein the VHT Compressed Beamforming Report field includes information based on a value indicated in the VHT MIMO Control field.2. The method of claim 1 , wherein the VHT MIMO Control field indicates a number of columns in a matrix and a number of rows in the matrix.3. The method of claim 1 , wherein the VHT MIMO Control field indicates a bandwidth configuration that includes a plurality of secondary channels for a VHT multi-channel transmission relative to a primary channel.4. The method of claim 1 , wherein the VHT Compressed Beamforming Report field includes a plurality of orthogonal frequency division multiplex (OFDM) sub-carriers claim 1 , wherein the OFDM sub-carriers are grouped in a set.5. The method of claim 1 , wherein a compressed beamforming matrix code book information size is included in the VHT MIMO Control field.6. ...

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Номер записи: 92
24-09-2020 дата публикации

MESSAGING APPLICATION WITH PRESENTATION SERVICE

Номер: US20200302107A1
Автор: Behiel Arthur J., GRANDHI Sudheer A., Vembu Sridhar
Принадлежит:

A messaging system supports a presentation session with participants of the presentation, a presenter and one or more audience members. The messaging system allows the participants to share messages and documents via respective client/mobile devices. An application on each mobile device allows the audience member to peruse and comment on document portions (e.g., pages, images, or slides) being presented. The presentation sequence for the document portions can be managed by the presenter, or document perusal can be decoupled from the presentation sequence to allow audience members to focus on past or future document portions. Comments of the audience member or other participants can be linked to corresponding document portions. 1. A method for facilitating , via a messaging application , an exchange of messages relating to a presentation of a document via a graphical user interface of a presentation device associated with a presenter , the method comprising:receiving the document as a plurality of display portions for presentation;receiving the presentation-initiation command and, responsive to the presentation-initiation command, initiating a presentation session;rendering, in the presentation session, a presentation view on the graphical user interface, the presentation view including a presentation window and a comments window;updating the presentation window to display a first display portion of the display portions;receiving a first comment message while displaying the first display portion;displaying the first comment message in a comments window and linking the first comment message to the first display portion;updating the presentation window to display a second display portion of the display portions;receiving a second comment message while displaying the second display portion;displaying the second comment message in the comments window and linking the second comment message to the second display portion;receiving, on the graphical user interface, a ...

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Номер записи: 93
03-11-2016 дата публикации

METHOD AND APPARATUS FOR PROVIDING VERY HIGH THROUGHPUT OPERATION AND CAPABILITY SIGNALING FOR WIRELESS COMMUNICATIONS

Номер: US20160323802A1
Автор: GRANDHI Sudheer A.
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method and apparatus are disclosed for enabling very high throughput (VHT) communications. A wireless transmit and receive unit (WTRU) may receive, from an access point (AP), a management frame comprising VHT capabilities information. The VHT capabilities information may comprise an indication of support for reception via non-contiguous channels. The WTRU may transmit, on a condition that reception via non-contiguous channels is supported, at least one data packet, to the AP, via multiple non-contiguous channels. The multiple non-contiguous channels may be used simultaneously. 1. A wireless transmit and receive unit (WTRU) comprising:a receiver configured to receive a management frame comprising very high throughput (VHT) capabilities information from an access point (AP), wherein the VHT capabilities information comprises an indication of support for reception via non-contiguous channels; anda transmitter configured to transmit at least one data packet to the AP via multiple non-contiguous channels on a condition that reception via non-contiguous channels is supported, wherein one of the multiple non-contiguous channels is a primary channel.2. The WTRU of claim 1 , wherein the VHT capabilities information comprises power control information.3. The WTRU of claim 1 , wherein the VHT capabilities information comprises frequency reuse capabilities.4. The WTRU of claim 1 , wherein the non-contiguous channels are used simultaneously.5. The WTRU of wherein each of the non-contiguous channels is formed from a group of contiguous channels.6. A method of communicating very high throughput (VHT) capability information from a wireless transmit/receive unit (WTRU) comprising:receiving a management frame comprising VHT capabilities information from an access point (AP), wherein the VHT capabilities information comprises an indication of support for reception via non-contiguous channels; andtransmitting at least one data packet to the AP via multiple non-contiguous channels on ...

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Номер записи: 94
24-09-2020 дата публикации

METHOD AND APPARATUS FOR EFFICIENT ADDRESSING AND POWER SAVINGS IN WIRELESS COMMUNICATIONS

Номер: US20200305078A1
Автор: Chandra Arty, GRANDHI Sudheer A., Sammour Mohammed
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus may be used for assigning groups of stations in wireless communications to one or more groups. Groups may be assigned by an access point (AP) based on information received from a station (STA). Group information may be signaled to each station and a group identifier may be indicated in a frame. The group information may be applied to a performance enhancement, for example power savings for the station, wherein the station enters a power saving mode on a condition that the station determines that it is not a member of the group. 1. A station (STA) comprising:a receiver configured to receive a frame from an access point (AP), wherein the frame comprises a physical layer (PHY) header and a data packet, wherein the PHY header includes an indication of a group identifier; anda processor configured to determine whether the group corresponds to a group to which the STA is assigned;the processor configured to enter a power saving mode on a condition that the group identifier does not correspond to a group to which the STA is assigned.2. The STA of claim 1 , further comprising:a transmitter configured to transmit an indication of power save capabilities to the AP.3. The STA of claim 1 , further comprising:a transmitter configured to transmit power level information to the AP.4. The STA of claim 1 , further comprising:a transmitter configured to transmit a quality of service (QoS) requirement to the AP.5. The STA of claim 1 , wherein at least one group to which the STA is assigned is based on a load balancing algorithm of the AP.6. The STA of claim 1 , wherein the indication of the group identifier included in the PHY header of the frame is included in an HT-SIG field of the PHY header.7. The STA of claim 1 , wherein the receiver is configured to receive claim 1 , from the AP claim 1 , a management frame indicating to the STA that the STA has been assigned to at least one group.8. The STA of claim 7 , wherein the indication to the STA that the STA has ...

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Номер записи: 95
02-11-2017 дата публикации

METHOD AND APPARATUS FOR ACCELERATED LINK SETUP

Номер: US20170318614A1
Автор: GRANDHI Sudheer A., Targali Yousif, Wang Lei, Wang Xiaofei, Zhang Guodong
Принадлежит: INTERDIGITAL PATENT HOLDINGS, INC.

A method for performing active scanning by a non-AP STA may comprise transmitting, to a group of APs, one or more probe request frames and receiving in response, configuration chance count (CCC) values from first and second APs of the group of APs. The CCC values may be integer values that represent configuration instances of the respective APs. The CCC values may be stored in a memory of the non-AP STA. A determination may be made, based on the information stored in the memory, as to which AP is preferred. An association procedure may be performed with the preferred AP. Other disclosed methods employ passive scanning. 1. A method for performing active scanning by a non-access point (non-AP) station (STA) , the method comprising:transmitting, to a group of access points (APs), one or more probe request frames;receiving, from a first access point (AP) of the group of APs, in response to the transmitted one or more probe request frames, a first system configuration message comprising a first configuration change count (CCC) value, wherein the first CCC value is an first integer value that represents a first configuration instance;receiving, from a second AP of the group of APs, in response to the broadcast probe request frame, a second system configuration message comprising a second CCC value, wherein the second CCC value is an second integer value that represents a second configuration instance;storing the first CCC value and the second CCC value in a memory of the non-AP STA;determining, by the non-AP STA, based on information stored in the memory of the non-AP STA, which one of the first AP or the second AP is a preferred AP; andperforming an association procedure with the preferred AP.2. The method of claim 1 , wherein the one or more probe request frames includes a service set identification (SSID) of the first AP and an SSID of the second AP.3. The method of claim 1 , wherein the one or more probe request frames includes a broadcast frame.4. The method of claim ...

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Номер записи: 96
10-11-2016 дата публикации

METHODS AND APPARATUS FOR ENHANCING ELECTRONIC PRESENTATIONS WITH LOCATION INFORMATION

Номер: US20160328204A1
Автор: Dandapani Rajendran, GRANDHI Sudheer A., Jambulingam Karthikeyan, Rajendran Vijaykumar, Sridhar Bharath, Vegesna Ramakrishna Raju, Vembu Manikandan, Vembu Sridhar
Принадлежит:

A system and method for communicating a multimedia presentation between a presenter and an audience is described. Services provided via a network facilitate the communication, and include real-time determination of remaining portions of a presentation responsive to “on the fly” presentation modifications, automated filtering and prioritization of audience feedback to a presenter, and integration with one or more customer data resources. 1. A computer-implemented method for electronically providing one or more electronic presentations corresponding to one or more multimedia presentations , the computer-implemented method comprising:providing an audience interface to a wireless handheld audience device via a network wherein the audience interface is capable of rendering at least one electronic presentation;receiving from the wireless handheld audience device, information relating to a first location corresponding to the wireless handheld audience device via the network, and in response, selecting a first multimedia presentation;transmitting a portion of the first multimedia presentation to the wireless handheld audience device via the network;receiving from the wireless handheld audience device, information relating to a second location corresponding to the wireless handheld audience device via the network, and in response, selecting a second multimedia presentation; andtransmitting a portion of the second multimedia presentation to the wireless handheld audience device via the network.2. The computer-implemented method of claim 1 , further comprising rendering to the wireless handheld audience device a first electronic presentation comprising a first visual component corresponding to the first multimedia presentation.3. The computer-implemented method of claim 2 , wherein the first electronic presentation further comprises a first aural component corresponding to the first multimedia presentation.4. The computer-implemented method of claim 2 , wherein the first ...

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Номер записи: 97
10-10-2019 дата публикации

Method and apparatus for supporting wideband and multiple bandwidth transmission protocols

Номер: US20190313448A1
Автор: Bhaskar M. Anepu, Sudheer A. Grandhi, Xiaofei Wang
Принадлежит: InterDigital Patent Holdings Inc

Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, an access point (AP) may receive, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit. On a condition that the individual/group bit of the BSSID field has a value of one (1), the AP may determine that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU. The AP may then transmit a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame.

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Номер записи: 98
08-11-2018 дата публикации

MESSAGING APPLICATION WITH PRESENTATION WINDOW

Номер: US20180322099A1
Автор: Behiel Arthur J., GRANDHI Sudheer A., Vembu Sridhar
Принадлежит:

A messaging system supports a presentation session with participants of the presentation, a presenter and one or more audience members. The message system allows the participants to share messages and documents via respective client/mobile devices. An application on each mobile device allows the audience member to peruse and comment on document portions (e.g., pages, images, or slides) being presented. The presentation sequence for the document portions can be managed by the presenter, or document perusal can be decoupled from the presentation sequence to allow audience members to focus on past or future document portions. Comments of the audience member or other participants can be linked to corresponding document portions. 1. A method for facilitating , via a messaging application , an exchange of messages relating to a presentation of a document via a graphical user interface of a presentation device associated with a presenter , the method comprising:rendering a message-initiation view on the graphical user interface, the message-initiation view including a first menu to accept a message-initiation command;rendering, responsive to the message-initiation command, a message-creation view on the graphical user interface, the message-creation view including a second menu to accept a presentation-initiation command from the presenter;receiving the presentation-initiation command and, responsive to the presentation-initiation command, initiating a presentation session;rendering, in the presentation session, a presentation view on the graphical user interface, the presentation view including a presentation window and a comments window; andupdating the presentation window to display a display portion from the document.2. The method of claim 1 , further comprising:issuing a command from the presentation device, the command to share the document for presentation with an audience member;receiving a first comment originating from the audience member while displaying the ...

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Номер записи: 99
08-11-2018 дата публикации

Method and apparatus for supporting management actions for very high throughput in wireless communications

Номер: US20180324880A1
Автор: Sudheer A. Grandhi
Принадлежит: InterDigital Patent Holdings Inc

A method and apparatus may be used to establish a communication link between devices such as VHT access points (APs) or VHT wireless transmit/receive units (WTRUs). For example, an AP or a WTRU may transmit management action request frames such as Association, Direct Link Setup (DLS) or Tunneled Direct Link Setup (TDLS) request frames. The management action frame may include VHT Capability information of the AP or the WTRU. In response to the management action request frame, the receiving AP or WTRU may transmit management action response frames to establish a communication link. Existing 802.11 management action frames may be used to include the VHT Capability information. The VHT Capability information may be used to implement various VHT features such as channel configurations or Beamforming.

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Номер записи: 100